E04D 3/40

Slabs or sheets locally modified for auxiliary purposes

Official title: Slabs or sheets locally modified for auxiliary purposes, e.g. for resting on walls, for serving as guttering; Elements for particular purposes, e.g. ridge elements, specially designed for use in conjunction with slabs or sheets {(E04D13/15 and E04D13/174 take precedence; ridge sealing E04D1/36; solar collectors F24S20/67)}

E04D3/40 (Slabs or sheets locally modified for auxiliary purposes) appears on 189 US grants and 134 published applications in this corpus.

Search patents in E04D
Granted patents
189
Published applications
134
Assignees
85
Inventors
306
Latest grant
5 May 2026

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E04D 3/40: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197710
197830
197900
198000
198100
198210
198310
198440
198540
198620
198710
198820
198930
199060
199100
199210
199330
199440
199550
199630
199760
199840
199980
200060
200161
200245
200349
200435
2005510
200604
200743
200837
200926
201075
201139
201243
201353
201478
201573
201644
201778
201811
201975
202055
202177
202243
202364
202457
202543
202646

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

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