D01H 7/52

Ring-and-traveller arrangements

D01H7/52 (Ring-and-traveller arrangements) appears on 117 US grants and 21 published applications in this corpus.

Search patents in D01H
Granted patents
117
Published applications
21
Assignees
68
Inventors
147
Latest grant
13 Jan 2026

Filings by year

D01H 7/52: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976110
197760
197880
197950
198030
1981100
198280
198340
198410
198540
198610
198720
198830
198960
199010
199120
199230
199310
199450
199500
199610
199710
199850
199930
200030
200101
200222
200322
200420
200500
200601
200710
200800
200900
201000
201100
201200
201300
201400
201501
201600
201701
201810
201912
202012
202111
202214
202341
202412
202521
202610

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

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Granted patents

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By later US patents