Granted patents
271
Published applications
210
Assignees
154
Inventors
557
Latest grant
4 Aug 2026

Filings by year

F01N 3/2885: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197730
197820
197900
198030
198100
198220
198320
198400
198520
198640
198700
198800
198920
199020
199150
199220
199360
1994140
1995100
199650
199730
1998100
1999110
200050
200171
2002511
2003814
2004516
20051014
20061018
2007817
20081016
2009811
2010116
201176
201275
201396
2014138
201577
201667
2017118
201826
201954
202046
202145
2022510
202360
202443
202524
202621

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