E04F 2290/043

With a bottom layer for sound insulation

Official title: with a bottom layer for sound insulation

E04F2290/043 (With a bottom layer for sound insulation) appears on 91 US grants and 150 published applications in this corpus.

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Granted patents
91
Published applications
150
Assignees
69
Inventors
162
Latest grant
15 Sep 2026

Filings by year

E04F 2290/043: granted patents and published applications per publication year
YearGranted patentsPublished applications
198910
199000
199100
199210
199300
199400
199510
199600
199700
199800
199900
200000
200101
200204
200312
200425
200526
200627
200716
200834
200936
201026
201112
201232
201341
201423
201542
201624
201748
201849
201957
2020412
202135
2022514
20231012
202488
2025910
202644

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

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