C04B 2235/6584

At an oxygen percentage below that of air

Official title: at an oxygen percentage below that of air

C04B2235/6584 (At an oxygen percentage below that of air) appears on 537 US grants and 629 published applications in this corpus.

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Granted patents
537
Published applications
629
Assignees
189
Inventors
1,167
Latest grant
16 Jun 2026

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C04B 2235/6584: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197730
197800
197900
198000
198100
198200
198300
198410
198500
198610
198700
198840
198930
199020
199120
199240
199310
199420
199540
199610
199740
199810
199910
200090
200115
200224
20031224
20041425
20051121
20061734
20072344
20082030
20092742
20102736
20112441
20122320
20133026
20141436
20152220
20163530
20173130
20182418
20191819
20201217
20211524
20221626
20232619
20241717
20252113
2026118

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