Filings by year

Y02B 70/3225: granted patents and published applications per publication year
YearGranted patentsPublished applications
197680
1977100
1978140
1979150
1980100
1981100
1982220
1983150
1984160
198550
198640
198770
198880
1989130
199070
199140
199240
199380
199440
1995130
1996140
1997160
1998110
199980
200080
200173
2002619
20031651
20041765
20052237
20064532
20073046
20083645
20093173
201031139
201141177
201294305
2013140351
2014180306
2015190242
2016197292
2017237252
2018235276
2019296277
2020250298
2021246209
2022150142
2023194121
202414972
20258948
20264026

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Recent patents

Most cited

By later US patents