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Patent Agency Ranking
公开(公告)号：US1930557A
公开(公告)日：1933-10-17
申请号：US42776230
申请日：1930-02-12
Applicant: GEN ZEOLITE COMPANY
Inventor： HUGHES WALTER J
IPC: F16K31/124
CPC classification number: F16K31/124 , Y10T137/87048
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公开(公告)号：US1897727A
公开(公告)日：1933-02-14
申请号：US18810427
申请日：1927-05-02
Applicant: GEN ZEOLITE COMPANY
Inventor： HUGHES WALTER J , GREEN WALTER H , HODGES ALBERT B
IPC: F22B37/26
CPC classification number: F22B37/265
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公开(公告)号：US1916426A
公开(公告)日：1933-07-04
申请号：US18810327
申请日：1927-05-02
Applicant: GEN ZEOLITE COMPANY
Inventor： HUGHES WALTER J , GREEN WALTER H
IPC: F22B37/48
CPC classification number: F22B37/48
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公开(公告)号：US1869149A
公开(公告)日：1932-07-26
申请号：US18810527
申请日：1927-05-02
Applicant: GEN ZEOLITE COMPANY
Inventor： HUGHES WALTER J
IPC: F22B37/26
CPC classification number: F22B37/265 , F22B37/263
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公开(公告)号：US1866305A
公开(公告)日：1932-07-05
申请号：US33669129
申请日：1929-02-01
Applicant: GEN ZEOLITE COMPANY
Inventor： HUGHES WALTER J
IPC: F16T1/24
CPC classification number: F16T1/24
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