Inventor

Ton Swarthoff

Inventor
Hellevoetsluis, NL

Overview

20→
Patents
1987–2006
Patent span
Chemistry
Primary field (CPC C)

Patents· 20 as inventor

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

C11Dprimary
C11DDetergent compositions87%
C12NMicroorganisms or enzymes9%
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1992Patents assigned to LEVER BROTHERS LTD (5)· patent assignee history
1987–1997Based in Hellevoetsluis, NL· patent location history
1991–2001Patents assigned to LEVER BROTHERS CO (9)· patent assignee history
1992Patents assigned to LEVER BROTHERS COMPANY DIVISON (1)· patent assignee history
1996Patents assigned to LEVER BROTHERS DIVISION OF CON (1)· patent assignee history
2000–2006Based in Vlaardingen, NL· patent location history
2001–2006Patents assigned to UNILEVER HOME & PERSONAL CARE (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEVER BROTHERS CO91991–2001
LEVER BROTHERS LTD51987–1992
UNILEVER HOME & PERSONAL CARE42001–2006
LEVER BROTHERS COMPANY DIVISON11992
LEVER BROTHERS DIVISION OF CON11996
Locations
LocationPatentsSpan
Hellevoetsluis, NL131987–1997
Vlaardingen, NL72000–2006