E04B 1/84

Sound-absorbing elements

E04B1/84 (Sound-absorbing elements) appears on 1,164 US grants and 1,089 published applications in this corpus.

Search patents in E04B
Granted patents
1,164
Published applications
1,089
Assignees
624
Inventors
2,177
Latest grant
22 Sep 2026

Filings by year

E04B 1/84: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976200
197770
1978280
1979110
1980170
1981130
1982140
198380
1984190
198590
1986130
198770
198820
198990
1990130
1991140
199290
1993130
199460
1995130
1996160
1997180
1998140
1999200
2000170
2001175
20021111
2003911
20041227
2005623
2006526
2007727
20081130
2009932
20102827
20112938
20122020
20133754
20144159
20155362
20165446
20174253
20183157
20194589
20205676
20216068
20225063
20237675
20246554
20253934
20262122

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

Subgroups

Granted patents