F23D 3/04

With flame spreaders

Official title: with flame spreaders (F23D3/12 takes precedence)

F23D3/04 (With flame spreaders) appears on 20 US grants and 11 published applications in this corpus.

Search patents in F23D
Granted patents
20
Published applications
11
Assignees
8
Inventors
22
Latest grant
12 May 2020

Filings by year

F23D 3/04: granted patents and published applications per publication year
YearGranted patentsPublished applications
198410
198500
198610
198700
198800
198910
199000
199100
199210
199300
199400
199510
199600
199710
199800
199910
200010
200100
200211
200310
200400
200500
200600
200701
200800
200910
201000
201100
201200
201302
201401
201512
201622
201720
201800
201922
202020

By publication year. Applications have been published since 2001.