E04D 1/20

Of plastics

Official title: of plastics; {of asphalt;} of fibrous materials

E04D1/20 (Of plastics) appears on 478 US grants and 605 published applications in this corpus.

Search patents in E04D
Granted patents
478
Published applications
605
Assignees
128
Inventors
733
Latest grant
15 Sep 2026

Filings by year

E04D 1/20: granted patents and published applications per publication year
YearGranted patentsPublished applications
198120
198200
198320
198450
198510
198610
198710
198820
198930
199020
199110
199210
199340
199450
199570
199660
199740
199830
199960
200070
200162
200243
200346
200426
2005316
200636
2007312
2008416
2009516
2010726
20111032
20122018
20132324
20141326
20151722
20162121
20171416
20181324
20191840
20203038
20213233
20223532
20233254
20244548
20253447
20261721

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

Subgroups

Granted patents