C25D 21/04

Removal of gases or vapours

Official title: Removal of gases or vapours {; Gas or pressure control}

C25D21/04 (Removal of gases or vapours) appears on 154 US grants and 193 published applications in this corpus.

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Granted patents
154
Published applications
193
Assignees
116
Inventors
415
Latest grant
2 Jun 2026

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C25D 21/04: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197700
197810
197910
198000
198100
198210
198310
198410
198500
198610
198700
198810
198900
199000
199100
199230
199320
199410
199520
199620
199710
199830
199900
200010
200111
200203
200346
2004210
200514
200634
200741
200834
200923
201057
201147
201214
201357
201446
2015311
201669
2017104
2018514
20191011
202086
202185
2022418
20231216
20241113
2025711
202668

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

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