E04B 9/00

Ceilings

Official title: Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation (ceilings used as forms for making floors E04B5/00; coverings or linings for ceilings E04F13/00)

E04B9/00 (Ceilings) appears on 2,832 US grants and 2,215 published applications in this corpus.

Search patents in E04B
Granted patents
2,832
Published applications
2,215
Assignees
989
Inventors
3,642
Latest grant
6 Oct 2026

Filings by year

E04B 9/00: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976450
1977490
1978400
1979210
1980280
1981240
1982210
1983180
1984420
1985430
1986370
1987560
1988390
1989440
1990320
1991440
1992400
1993430
1994410
1995340
1996250
1997410
1998390
1999530
2000530
20016613
20026244
20034063
20043967
20052471
20063884
20073376
20082680
20094262
20106966
20115374
20126071
20136877
20148486
20159898
2016102116
201785121
2018104115
2019127133
2020112134
2021107112
2022108131
20238599
202410397
20258870
20265755

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

Subgroups

Granted patents
All 13 subgroups