D21J 1/20

Insulating board

D21J1/20 (Insulating board) appears on 41 US grants and 34 published applications in this corpus.

Search patents in D21J
Granted patents
41
Published applications
34
Assignees
34
Inventors
95
Latest grant
24 Jun 2025

Filings by year

D21J 1/20: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197710
197810
197900
198000
198110
198200
198300
198410
198520
198600
198700
198810
198900
199000
199120
199210
199310
199400
199500
199600
199700
199810
199900
200010
200110
200221
200311
200404
200521
200620
200710
200800
200902
201001
201112
201220
201300
201410
201503
201610
201703
201833
201911
202002
202113
202233
202321
202422
202511

By publication year. Applications have been published since 2001.

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By later US patents