Filings by year

F04B 27/0839: granted patents and published applications per publication year
YearGranted patentsPublished applications
198810
198900
199000
199100
199200
199300
199410
199520
199610
199700
199800
199910
200000
200100
200201
200332
200404
200513
200601
200710
200810
200901
201010
201101
201201
201301
201411
201501
201601
201701
201800
201903
202021
202101
202203
202320
202430
202500
202601

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

Subgroups

Granted patents

Recent patents

Most cited

By later US patents