World Patent Information

World Patent Information aims to encompass the world of IP information; and focus the journal towards IPRs for industrially applicable innovations; and their management, analysis; big data analysis; policy; education. IPRs - patents, utility models; copyright, trademarks, registered design; design rights; trade secrets; database rights; traditional knowledge; indigenous knowledge; geographical indications may all be considered. World Patent Information publishes articles regarding best practice in legal and commercial patent search and analysis; articles which focus on particular types of search such as freedom to operate, FTO, clearance, state of the art, invalidity, validity, prior art, technical, landscaping, scouting, forecasting, patentability, decision searching, competitive intelligence using patent information. We are also interested in articles researching into meta data relating to IPRs such as legal status data for IPR; classifications and bibliographic data. We are interested in IP documentation, search, documentation, classification and IP information news from IP Offices. Always welcome are reviews of state of the art in a particular industry, reviews of patent, and other IP and scientific and technical databases, search and analysis for IP purposes.

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Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Bioengineering	1999	Q4
Bioengineering	2000	Q4
Bioengineering	2001	Q4
Bioengineering	2002	Q4
Bioengineering	2003	Q3
Bioengineering	2004	Q4
Bioengineering	2005	Q3
Bioengineering	2006	Q3
Bioengineering	2007	Q4
Bioengineering	2008	Q3
Bioengineering	2009	Q4
Bioengineering	2010	Q4
Bioengineering	2011	Q3
Bioengineering	2012	Q3
Bioengineering	2013	Q3
Bioengineering	2014	Q4
Bioengineering	2015	Q3
Bioengineering	2016	Q3
Bioengineering	2017	Q3
Bioengineering	2018	Q3
Bioengineering	2019	Q3
Bioengineering	2020	Q3
Bioengineering	2021	Q3
Bioengineering	2022	Q2
Bioengineering	2023	Q2
Computer Science Applications	1999	Q4
Computer Science Applications	2000	Q4
Computer Science Applications	2001	Q4
Computer Science Applications	2002	Q4
Computer Science Applications	2003	Q3
Computer Science Applications	2004	Q4
Computer Science Applications	2005	Q3
Computer Science Applications	2006	Q3
Computer Science Applications	2007	Q4
Computer Science Applications	2008	Q3
Computer Science Applications	2009	Q3
Computer Science Applications	2010	Q3
Computer Science Applications	2011	Q3
Computer Science Applications	2012	Q3
Computer Science Applications	2013	Q3
Computer Science Applications	2014	Q3
Computer Science Applications	2015	Q3
Computer Science Applications	2016	Q3
Computer Science Applications	2017	Q3
Computer Science Applications	2018	Q3
Computer Science Applications	2019	Q3
Computer Science Applications	2020	Q3
Computer Science Applications	2021	Q2
Computer Science Applications	2022	Q2
Computer Science Applications	2023	Q2
Energy Engineering and Power Technology	1999	Q4
Energy Engineering and Power Technology	2000	Q3
Energy Engineering and Power Technology	2001	Q3
Energy Engineering and Power Technology	2002	Q2
Energy Engineering and Power Technology	2003	Q2
Energy Engineering and Power Technology	2004	Q2
Energy Engineering and Power Technology	2005	Q2
Energy Engineering and Power Technology	2006	Q2
Energy Engineering and Power Technology	2007	Q2
Energy Engineering and Power Technology	2008	Q2
Energy Engineering and Power Technology	2009	Q2
Energy Engineering and Power Technology	2010	Q2
Energy Engineering and Power Technology	2011	Q2
Energy Engineering and Power Technology	2012	Q2
Energy Engineering and Power Technology	2013	Q2
Energy Engineering and Power Technology	2014	Q2
Energy Engineering and Power Technology	2015	Q2
Energy Engineering and Power Technology	2016	Q3
Energy Engineering and Power Technology	2017	Q2
Energy Engineering and Power Technology	2018	Q3
Energy Engineering and Power Technology	2019	Q3
Energy Engineering and Power Technology	2020	Q3
Energy Engineering and Power Technology	2021	Q2
Energy Engineering and Power Technology	2022	Q2
Energy Engineering and Power Technology	2023	Q2
Fuel Technology	1999	Q4
Fuel Technology	2000	Q2
Fuel Technology	2001	Q2
Fuel Technology	2002	Q2
Fuel Technology	2003	Q2
Fuel Technology	2004	Q2
Fuel Technology	2005	Q2
Fuel Technology	2006	Q2
Fuel Technology	2007	Q2
Fuel Technology	2008	Q2
Fuel Technology	2009	Q2
Fuel Technology	2010	Q2
Fuel Technology	2011	Q2
Fuel Technology	2012	Q2
Fuel Technology	2013	Q2
Fuel Technology	2014	Q2
Fuel Technology	2015	Q2
Fuel Technology	2016	Q3
Fuel Technology	2017	Q3
Fuel Technology	2018	Q3
Fuel Technology	2019	Q3
Fuel Technology	2020	Q3
Fuel Technology	2021	Q2
Fuel Technology	2022	Q2
Fuel Technology	2023	Q2
Library and Information Sciences	1999	Q4
Library and Information Sciences	2000	Q4
Library and Information Sciences	2001	Q3
Library and Information Sciences	2002	Q3
Library and Information Sciences	2003	Q3
Library and Information Sciences	2004	Q4
Library and Information Sciences	2005	Q2
Library and Information Sciences	2006	Q2
Library and Information Sciences	2007	Q3
Library and Information Sciences	2008	Q3
Library and Information Sciences	2009	Q3
Library and Information Sciences	2010	Q3
Library and Information Sciences	2011	Q3
Library and Information Sciences	2012	Q2
Library and Information Sciences	2013	Q2
Library and Information Sciences	2014	Q3
Library and Information Sciences	2015	Q2
Library and Information Sciences	2016	Q2
Library and Information Sciences	2017	Q2
Library and Information Sciences	2018	Q2
Library and Information Sciences	2019	Q2
Library and Information Sciences	2020	Q2
Library and Information Sciences	2021	Q1
Library and Information Sciences	2022	Q1
Library and Information Sciences	2023	Q1
Process Chemistry and Technology	1999	Q4
Process Chemistry and Technology	2000	Q2
Process Chemistry and Technology	2001	Q2
Process Chemistry and Technology	2002	Q2
Process Chemistry and Technology	2003	Q2
Process Chemistry and Technology	2004	Q2
Process Chemistry and Technology	2005	Q2
Process Chemistry and Technology	2006	Q2
Process Chemistry and Technology	2007	Q2
Process Chemistry and Technology	2008	Q2
Process Chemistry and Technology	2009	Q3
Process Chemistry and Technology	2010	Q3
Process Chemistry and Technology	2011	Q2
Process Chemistry and Technology	2012	Q2
Process Chemistry and Technology	2013	Q2
Process Chemistry and Technology	2014	Q3
Process Chemistry and Technology	2015	Q3
Process Chemistry and Technology	2016	Q3
Process Chemistry and Technology	2017	Q3
Process Chemistry and Technology	2018	Q3
Process Chemistry and Technology	2019	Q3
Process Chemistry and Technology	2020	Q3
Process Chemistry and Technology	2021	Q2
Process Chemistry and Technology	2022	Q2
Process Chemistry and Technology	2023	Q2
Renewable Energy, Sustainability and the Environment	1999	Q4
Renewable Energy, Sustainability and the Environment	2000	Q3
Renewable Energy, Sustainability and the Environment	2001	Q3
Renewable Energy, Sustainability and the Environment	2002	Q3
Renewable Energy, Sustainability and the Environment	2003	Q3
Renewable Energy, Sustainability and the Environment	2004	Q3
Renewable Energy, Sustainability and the Environment	2005	Q3
Renewable Energy, Sustainability and the Environment	2006	Q3
Renewable Energy, Sustainability and the Environment	2007	Q3
Renewable Energy, Sustainability and the Environment	2008	Q3
Renewable Energy, Sustainability and the Environment	2009	Q3
Renewable Energy, Sustainability and the Environment	2010	Q3
Renewable Energy, Sustainability and the Environment	2011	Q3
Renewable Energy, Sustainability and the Environment	2012	Q3
Renewable Energy, Sustainability and the Environment	2013	Q3
Renewable Energy, Sustainability and the Environment	2014	Q3
Renewable Energy, Sustainability and the Environment	2015	Q3
Renewable Energy, Sustainability and the Environment	2016	Q3
Renewable Energy, Sustainability and the Environment	2017	Q3
Renewable Energy, Sustainability and the Environment	2018	Q3
Renewable Energy, Sustainability and the Environment	2019	Q3
Renewable Energy, Sustainability and the Environment	2020	Q3
Renewable Energy, Sustainability and the Environment	2021	Q3
Renewable Energy, Sustainability and the Environment	2022	Q2
Renewable Energy, Sustainability and the Environment	2023	Q2

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	0.101
2000	0.124
2001	0.144
2002	0.188
2003	0.211
2004	0.152
2005	0.310
2006	0.267
2007	0.210
2008	0.230
2009	0.256
2010	0.222
2011	0.303
2012	0.351
2013	0.360
2014	0.275
2015	0.355
2016	0.293
2017	0.335
2018	0.308
2019	0.331
2020	0.320
2021	0.540
2022	0.637
2023	0.633

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	5
2000	16
2001	26
2002	47
2003	39
2004	45
2005	41
2006	49
2007	53
2008	44
2009	56
2010	48
2011	52
2012	49
2013	39
2014	47
2015	44
2016	38
2017	36
2018	45
2019	35
2020	29
2021	33
2022	33
2023	48

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	0.000
Cites / Doc. (4 years)	2000	0.167
Cites / Doc. (4 years)	2001	0.343
Cites / Doc. (4 years)	2002	0.148
Cites / Doc. (4 years)	2003	0.351
Cites / Doc. (4 years)	2004	0.555
Cites / Doc. (4 years)	2005	0.459
Cites / Doc. (4 years)	2006	0.407
Cites / Doc. (4 years)	2007	0.477
Cites / Doc. (4 years)	2008	0.293
Cites / Doc. (4 years)	2009	0.594
Cites / Doc. (4 years)	2010	0.594
Cites / Doc. (4 years)	2011	0.647
Cites / Doc. (4 years)	2012	0.765
Cites / Doc. (4 years)	2013	0.795
Cites / Doc. (4 years)	2014	0.713
Cites / Doc. (4 years)	2015	0.615
Cites / Doc. (4 years)	2016	0.659
Cites / Doc. (4 years)	2017	0.899
Cites / Doc. (4 years)	2018	0.909
Cites / Doc. (4 years)	2019	0.834
Cites / Doc. (4 years)	2020	1.143
Cites / Doc. (4 years)	2021	1.669
Cites / Doc. (4 years)	2022	2.380
Cites / Doc. (4 years)	2023	2.838
Cites / Doc. (3 years)	1999	0.000
Cites / Doc. (3 years)	2000	0.211
Cites / Doc. (3 years)	2001	0.429
Cites / Doc. (3 years)	2002	0.170
Cites / Doc. (3 years)	2003	0.360
Cites / Doc. (3 years)	2004	0.571
Cites / Doc. (3 years)	2005	0.481
Cites / Doc. (3 years)	2006	0.456
Cites / Doc. (3 years)	2007	0.422
Cites / Doc. (3 years)	2008	0.315
Cites / Doc. (3 years)	2009	0.575
Cites / Doc. (3 years)	2010	0.627
Cites / Doc. (3 years)	2011	0.703
Cites / Doc. (3 years)	2012	0.744
Cites / Doc. (3 years)	2013	0.906
Cites / Doc. (3 years)	2014	0.657
Cites / Doc. (3 years)	2015	0.593
Cites / Doc. (3 years)	2016	0.723
Cites / Doc. (3 years)	2017	1.008
Cites / Doc. (3 years)	2018	0.831
Cites / Doc. (3 years)	2019	1.042
Cites / Doc. (3 years)	2020	1.112
Cites / Doc. (3 years)	2021	1.872
Cites / Doc. (3 years)	2022	2.278
Cites / Doc. (3 years)	2023	3.137
Cites / Doc. (2 years)	1999	0.000
Cites / Doc. (2 years)	2000	0.250
Cites / Doc. (2 years)	2001	0.524
Cites / Doc. (2 years)	2002	0.143
Cites / Doc. (2 years)	2003	0.342
Cites / Doc. (2 years)	2004	0.523
Cites / Doc. (2 years)	2005	0.536
Cites / Doc. (2 years)	2006	0.453
Cites / Doc. (2 years)	2007	0.444
Cites / Doc. (2 years)	2008	0.363
Cites / Doc. (2 years)	2009	0.536
Cites / Doc. (2 years)	2010	0.670
Cites / Doc. (2 years)	2011	0.635
Cites / Doc. (2 years)	2012	0.780
Cites / Doc. (2 years)	2013	0.822
Cites / Doc. (2 years)	2014	0.580
Cites / Doc. (2 years)	2015	0.581
Cites / Doc. (2 years)	2016	0.813
Cites / Doc. (2 years)	2017	0.695
Cites / Doc. (2 years)	2018	0.973
Cites / Doc. (2 years)	2019	0.815
Cites / Doc. (2 years)	2020	1.150
Cites / Doc. (2 years)	2021	1.844
Cites / Doc. (2 years)	2022	2.806
Cites / Doc. (2 years)	2023	2.182

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	0
Self Cites	2000	4
Self Cites	2001	9
Self Cites	2002	7
Self Cites	2003	25
Self Cites	2004	46
Self Cites	2005	38
Self Cites	2006	31
Self Cites	2007	41
Self Cites	2008	22
Self Cites	2009	40
Self Cites	2010	48
Self Cites	2011	33
Self Cites	2012	36
Self Cites	2013	43
Self Cites	2014	31
Self Cites	2015	17
Self Cites	2016	25
Self Cites	2017	17
Self Cites	2018	34
Self Cites	2019	20
Self Cites	2020	21
Self Cites	2021	42
Self Cites	2022	37
Self Cites	2023	56
Total Cites	1999	0
Total Cites	2000	4
Total Cites	2001	12
Total Cites	2002	8
Total Cites	2003	32
Total Cites	2004	64
Total Cites	2005	63
Total Cites	2006	57
Total Cites	2007	57
Total Cites	2008	45
Total Cites	2009	84
Total Cites	2010	96
Total Cites	2011	104
Total Cites	2012	116
Total Cites	2013	135
Total Cites	2014	92
Total Cites	2015	80
Total Cites	2016	94
Total Cites	2017	130
Total Cites	2018	98
Total Cites	2019	124
Total Cites	2020	129
Total Cites	2021	204
Total Cites	2022	221
Total Cites	2023	298

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	0.000
External Cites per document	2000	0.000
External Cites per document	2001	0.107
External Cites per document	2002	0.021
External Cites per document	2003	0.079
External Cites per document	2004	0.161
External Cites per document	2005	0.191
External Cites per document	2006	0.208
External Cites per document	2007	0.119
External Cites per document	2008	0.161
External Cites per document	2009	0.301
External Cites per document	2010	0.314
External Cites per document	2011	0.480
External Cites per document	2012	0.513
External Cites per document	2013	0.617
External Cites per document	2014	0.436
External Cites per document	2015	0.467
External Cites per document	2016	0.531
External Cites per document	2017	0.876
External Cites per document	2018	0.542
External Cites per document	2019	0.874
External Cites per document	2020	0.931
External Cites per document	2021	1.486
External Cites per document	2022	1.897
External Cites per document	2023	2.547
Cites per document	1999	0.000
Cites per document	2000	0.211
Cites per document	2001	0.429
Cites per document	2002	0.170
Cites per document	2003	0.360
Cites per document	2004	0.571
Cites per document	2005	0.481
Cites per document	2006	0.456
Cites per document	2007	0.422
Cites per document	2008	0.315
Cites per document	2009	0.575
Cites per document	2010	0.627
Cites per document	2011	0.703
Cites per document	2012	0.744
Cites per document	2013	0.906
Cites per document	2014	0.657
Cites per document	2015	0.593
Cites per document	2016	0.723
Cites per document	2017	1.008
Cites per document	2018	0.831
Cites per document	2019	1.042
Cites per document	2020	1.112
Cites per document	2021	1.872
Cites per document	2022	2.278
Cites per document	2023	3.137

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	0.00
2000	0.00
2001	11.54
2002	0.00
2003	2.56
2004	2.22
2005	4.88
2006	0.00
2007	3.77
2008	9.09
2009	5.36
2010	4.17
2011	7.69
2012	8.16
2013	5.13
2014	6.38
2015	18.18
2016	13.16
2017	16.67
2018	13.33
2019	17.14
2020	17.24
2021	15.15
2022	12.12
2023	16.67

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	0
Non-citable documents	2001	0
Non-citable documents	2002	0
Non-citable documents	2003	11
Non-citable documents	2004	18
Non-citable documents	2005	30
Non-citable documents	2006	26
Non-citable documents	2007	25
Non-citable documents	2008	22
Non-citable documents	2009	20
Non-citable documents	2010	18
Non-citable documents	2011	17
Non-citable documents	2012	17
Non-citable documents	2013	20
Non-citable documents	2014	17
Non-citable documents	2015	17
Non-citable documents	2016	14
Non-citable documents	2017	15
Non-citable documents	2018	14
Non-citable documents	2019	15
Non-citable documents	2020	13
Non-citable documents	2021	13
Non-citable documents	2022	9
Non-citable documents	2023	7
Citable documents	1999	19
Citable documents	2000	19
Citable documents	2001	28
Citable documents	2002	47
Citable documents	2003	78
Citable documents	2004	94
Citable documents	2005	101
Citable documents	2006	99
Citable documents	2007	110
Citable documents	2008	121
Citable documents	2009	126
Citable documents	2010	135
Citable documents	2011	131
Citable documents	2012	139
Citable documents	2013	129
Citable documents	2014	123
Citable documents	2015	118
Citable documents	2016	116
Citable documents	2017	114
Citable documents	2018	104
Citable documents	2019	104
Citable documents	2020	103
Citable documents	2021	96
Citable documents	2022	88
Citable documents	2023	88

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	19
Uncited documents	2000	16
Uncited documents	2001	18
Uncited documents	2002	41
Uncited documents	2003	67
Uncited documents	2004	70
Uncited documents	2005	91
Uncited documents	2006	90
Uncited documents	2007	96
Uncited documents	2008	118
Uncited documents	2009	103
Uncited documents	2010	109
Uncited documents	2011	96
Uncited documents	2012	93
Uncited documents	2013	90
Uncited documents	2014	88
Uncited documents	2015	98
Uncited documents	2016	94
Uncited documents	2017	89
Uncited documents	2018	69
Uncited documents	2019	68
Uncited documents	2020	58
Uncited documents	2021	48
Uncited documents	2022	34
Uncited documents	2023	28
Cited documents	1999	0
Cited documents	2000	3
Cited documents	2001	10
Cited documents	2002	6
Cited documents	2003	22
Cited documents	2004	42
Cited documents	2005	40
Cited documents	2006	35
Cited documents	2007	39
Cited documents	2008	25
Cited documents	2009	43
Cited documents	2010	44
Cited documents	2011	52
Cited documents	2012	63
Cited documents	2013	59
Cited documents	2014	52
Cited documents	2015	37
Cited documents	2016	36
Cited documents	2017	40
Cited documents	2018	49
Cited documents	2019	51
Cited documents	2020	58
Cited documents	2021	61
Cited documents	2022	63
Cited documents	2023	67