H01P 1/18

Phase-shifters

Official title: Phase-shifters (H01P1/165 takes precedence)

H01P1/18 (Phase-shifters) appears on 1,167 US grants and 1,060 published applications in this corpus.

Search patents in H01P
Granted patents
1,167
Published applications
1,060
Assignees
490
Inventors
2,362
Latest grant
22 Sep 2026

Filings by year

H01P 1/18: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976120
197790
197880
197960
198070
198170
198290
198390
1984100
198550
1986200
1987100
198890
1989130
199060
1991110
1992100
199350
199490
1995140
199680
199760
1998150
199990
2000170
2001172
20021926
20032321
20042426
20052039
20062922
20072717
20081220
20092327
20101715
20111414
20121623
20131621
20141923
20152736
20163337
20173143
20184760
20196153
20206766
20215280
20225779
20237068
202466119
20257666
20266057

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

Subgroups

Granted patents

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By later US patents