B28D 1/20

Working stone or stone-like materials: by planing

Official title: by planing, e.g. channelling by means of planing tools

B28D1/20 (Working stone or stone-like materials: by planing) appears on 21 US grants and 22 published applications in this corpus.

Search patents in B28D
Granted patents
21
Published applications
22
Assignees
13
Inventors
37
Latest grant
23 Jun 2026

Filings by year

B28D 1/20: granted patents and published applications per publication year
YearGranted patentsPublished applications
198410
198500
198600
198700
198800
198900
199000
199110
199200
199310
199400
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200511
200600
200700
200801
200900
201010
201100
201201
201310
201403
201522
201612
201731
201801
201912
202011
202102
202221
202321
202411
202502
202620

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