Patent search ap:("STANDARD OIL DEV CO") AND inv:"RYAN JOHN A" Page 1

1.

发明授权
Motor gasoline additive 失效
Title translation: 汽油添加剂

公开(公告)号：US2668522A

公开(公告)日：1954-02-09

申请号：US25899251

申请日：1951-11-29

Applicant: STANDARD OIL DEV CO

Inventor： HICKOK JOHN E , RYAN JOHN A

IPC: C10L1/14 , C10L1/16 , C10L1/18

CPC classification number: C10L1/14 , C10L1/1616 , C10L1/1824 , C10L1/1852

Patent Agency Ranking