E04G 21/328

Fastened to the roof covering or insulation

Official title: {fastened to the roof covering or insulation}

E04G21/328 (Fastened to the roof covering or insulation) appears on 85 US grants and 82 published applications in this corpus.

Search patents in E04G
Granted patents
85
Published applications
82
Assignees
37
Inventors
119
Latest grant
2 Jun 2026

Filings by year

E04G 21/328: granted patents and published applications per publication year
YearGranted patentsPublished applications
198210
198310
198400
198500
198610
198710
198800
198900
199010
199100
199200
199320
199400
199510
199620
199720
199830
199910
200010
200100
200203
200310
200413
200500
200622
200713
200801
200911
201012
201127
201227
201324
2014611
201551
201653
201755
201843
201966
202046
202172
202225
202323
202443
202541
202610

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

Subgroups

Granted patents