G21C 9/016

Core catchers

G21C9/016 (Core catchers) appears on 114 US grants and 88 published applications in this corpus.

Search patents in G21C
Granted patents
114
Published applications
88
Assignees
66
Inventors
297
Latest grant
10 Mar 2026

Filings by year

G21C 9/016: granted patents and published applications per publication year
YearGranted patentsPublished applications
197640
197750
197850
197910
198010
198140
198230
198310
198420
198500
198610
198720
198800
198900
199010
199120
199210
199330
199470
199530
199610
199740
199830
199950
200000
200130
200222
200310
200400
200500
200601
200701
200802
200912
201003
201111
201206
201323
201416
201523
201682
201706
201855
201914
202056
202125
202292
2023411
202437
202526
202634

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

Recent patents

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By later US patents