Filings by year

G02B 27/4227: granted patents and published applications per publication year
YearGranted patentsPublished applications
199010
199110
199200
199300
199430
199510
199630
199700
199840
199910
200010
200144
200265
200353
200464
200532
200644
200714
200857
200999
201042
201144
201222
201321
201422
2015324
201628
201746
201894
20191312
20201910
202195
20221112
202387
2024107
2025107
202613

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

Recent patents

Most cited

By later US patents