Patent search ap:("STANDARD OIL CO") AND inv:"LIEWELLYN HEARD" Page 1

1.

发明授权
Catalytic hydrocarbon conversion 失效
Title translation: 催化烃转化

公开(公告)号：US2308774A

公开(公告)日：1943-01-19

申请号：US34407240

申请日：1940-07-05

Applicant: STANDARD OIL CO

Inventor： OBLAD ALEX G , LIEWELLYN HEARD

IPC: B01J23/72 , C10G11/04 , C10G35/06

CPC classification number: C10G35/06 , B01J23/72 , C10G11/04

Patent Agency Ranking