LexDanaLexDanabeta
Inventor

John W. Yorke

Inventor
Wirral, GB

Overview

2→
Patents
1989–1997
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C11Dprimary
C11DDetergent compositions100%
PatentTitleYear
5,695,575'Anti-form system based on hydrocarbon polymers and hydrophobic particulate solids'19974,818,292'Antifoam ingredient for detergent compositions'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to LEVER BROTHERS LTD (1)· patent assignee history
1989–1997Based in Wirral, GB· patent location history
1997Patents assigned to LEVER BROTHERS CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEVER BROTHERS CO11997
LEVER BROTHERS LTD11989
Locations
LocationPatentsSpan
Wirral, GB21989–1997