C04B 7/30

From oil shale

Official title: from oil shale; from oil shale residues {; from lignite processing, e.g. using certain lignite fractions}

C04B7/30 (From oil shale) appears on 13 US grants and 11 published applications in this corpus.

Search patents in C04B
Granted patents
13
Published applications
11
Assignees
16
Inventors
38
Latest grant
2 Aug 2016

Filings by year

C04B 7/30: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197720
197810
197900
198000
198110
198210
198320
198400
198500
198600
198700
198800
198900
199000
199100
199210
199300
199400
199500
199600
199700
199800
199900
200000
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200200
200300
200411
200500
200600
200700
200800
200900
201000
201100
201201
201311
201412
201500
201613
201700
201800
201900
202000
202100
202201
202300
202401
202500
202601

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

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