E01C 2201/202

Horizontal drainage channels

E01C2201/202 (Horizontal drainage channels) appears on 73 US grants and 88 published applications in this corpus.

Search patents in E01C
Granted patents
73
Published applications
88
Assignees
41
Inventors
83
Latest grant
29 Sep 2026

Filings by year

E01C 2201/202: granted patents and published applications per publication year
YearGranted patentsPublished applications
198310
198400
198500
198600
198700
198800
198910
199000
199100
199200
199300
199400
199510
199600
199700
199810
199920
200010
200110
200221
200300
200410
200502
200610
200701
200813
200911
201001
201104
201223
201364
201433
201534
201622
201746
201838
201956
2020610
202145
202234
202356
202456
202575
202613

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

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