Filings by year

B60K 31/047: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197910
198000
198100
198230
198310
198450
198540
198660
198780
1988100
1989160
1990220
1991300
1992150
1993130
199470
1995120
1996180
1997200
1998140
1999120
2000130
2001183
2002116
200365
200446
200555
200641
200714
200812
200912
201024
201112
201263
201342
201430
201501
201612
201702
201822
201921
202022
202100
202210
202311

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents