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公开(公告)号:US1698573A
公开(公告)日:1929-01-08
申请号:US27342528
申请日:1928-04-27
Applicant: IG FARBENINDUSTRIE AG
Inventor: RUDOLF WIETZEL , FRANZ KREMP
IPC: C07C67/36
CPC classification number: C07C67/36 , C07C2601/14 , C07C69/007 , C07C69/157
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公开(公告)号:US1917323A
公开(公告)日:1933-07-11
申请号:US34001129
申请日:1929-02-14
Applicant: IG FARBENINDUSTRIE AG
Inventor: MATHIAS PIER , RUDOLF WIETZEL , KARL WINKLER
IPC: C07C29/151 , C07C29/156
CPC classification number: C07C29/1512 , C07C29/156 , C07C31/04
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3.Prevention of the formation of carbon in operations carried out with hydrocarbons at an elevated temperature 失效
Title translation: 防止碳氢化合物在高温下进行的操作中形成碳公开(公告)号:US1847095A
公开(公告)日:1932-03-01
申请号:US29709628
申请日:1928-08-02
Applicant: IG FARBENINDUSTRIE AG
Inventor: ALWIN MITTASCH , RUDOLF WIETZEL , CONRAD PFAUNDLER
IPC: B01J19/00
CPC classification number: B01J19/0026 , Y10S585/95
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4.
公开(公告)号:US1738625A
公开(公告)日:1929-12-10
申请号:US16195627
申请日:1927-01-18
Applicant: IG FARBENINDUSTRIE AG
Inventor: RUDOLF WIETZEL , LEO SCHLECHT , OTTO KOHLER
IPC: C01B15/013
CPC classification number: C01B15/013
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公开(公告)号:US1913941A
公开(公告)日:1933-06-13
申请号:US27596228
申请日:1928-05-07
Applicant: IG FARBENINDUSTRIE AG
Inventor: ALWIN MITTASCH , MATHIAS PIER , RUDOLF WIETZEL , HELLMUTH LANGHEINRICH
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公开(公告)号:US1851726A
公开(公告)日:1932-03-29
申请号:US21936227
申请日:1927-09-13
Applicant: IG FARBENINDUSTRIE AG
Inventor: MATHIAS PIER , WILHELM PUNGS , RUDOLF WIETZEL
IPC: C07C2/00
CPC classification number: C07C2/00 , C07C2521/10 , C07C2523/02 , Y10S585/943
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公开(公告)号:US1844998A
公开(公告)日:1932-02-16
申请号:US26358128
申请日:1928-03-21
Applicant: IG FARBENINDUSTRIE AG
Inventor: RUDOLF WIETZEL , CONRAD PFAUNDLER
IPC: C10G1/08
CPC classification number: C10G1/086
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公开(公告)号:US1841910A
公开(公告)日:1932-01-19
申请号:US739125
申请日:1925-02-06
Applicant: IG FARBENINDUSTRIE AG
Inventor: MATHIAS PIER , RUDOLF WIETZEL , KARL WINKLER
IPC: C07C29/151 , C07C29/156
CPC classification number: C07C29/156 , C07C29/1512 , C07C31/02
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公开(公告)号:US1776875A
公开(公告)日:1930-09-30
申请号:US25815228
申请日:1928-02-29
Applicant: IG FARBENINDUSTRIE AG
Inventor: RUDOLF WIETZEL , ERNEST WILLFROTH
CPC classification number: C10G1/086 , B01J37/0009
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10.Separation of valuable products from mixtures thereof with solid substances 失效
Title translation: 有价值产品与其与固体物质的混合物的分离公开(公告)号:US1925551A
公开(公告)日:1933-09-05
申请号:US28011428
申请日:1928-05-23
Applicant: IG FARBENINDUSTRIE AG
Inventor: RUDOLF WIETZEL , BRUNO ENGEL
IPC: C10G1/04
CPC classification number: C10G1/045
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