Inventor

Willem A. Westerhof

Inventor

Drachten, NL

Overview

13→

Patents

1999–2019

Patent span

Performing operations

Primary field (CPC B)

Patents· 13 as inventor

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

B26Bprimary

B26BHand-held cutting tools not otherwise provided for61%

A61BDiagnosis11%

A61CDentistry6%

A61NElectrotherapy6%

B23KSoldering or unsoldering6%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers6%

B67DDispensing, delivering or transferring liquids, not otherwise provided for6%

PatentTitleYear

10,265,799Hair cutting device2019 10,179,418Shaving device for skin hairs2019 9,333,657'Safety razor apparatus having a pivotable grip portion'2016 8,056,238'Shaving head having a blade supporting member with reduced cross-sectional area'2011 7,251,894'Device for shaving hair having a cutting member with a periodical motion'2007 RE038634'System appliance and cartridge for personal body care'2004 6,493,940'System and appliance for personal body care'2002 6,312,436'Depilation system'2001 6,308,413'System and appliance for personal body care'2001 6,131,288'System appliance and cartridge for personal body care'2000 6,126,669'Depilation system'2000 6,039,301'Container and sealing device for use in the container'2000 5,993,180'Pump, pump and holder assembly, personal-care appliance, and method of assembling a pump'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2001Patents assigned to PHILIPS CORP (6)· patent assignee history

1999–2016Based in Drachten, NL· patent location history

2004–2011Patents assigned to KONINKL PHILIPS ELECTRONICS NV (3)· patent assignee history

2011–2016Patents assigned to BRADA YPE BERNARDUS (2)· patent assignee history

2011–2016Patents assigned to VAN EIBERGEN SANTHAGENS ROBERT ALEXANDER (2)· patent assignee history

2019Patents assigned to KONINKLIJKE PHILIPS NV (2)· patent assignee history

2019Based in Eindhoven, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PHILIPS CORP	6	1999–2001
KONINKL PHILIPS ELECTRONICS NV	3	2004–2011
BRADA YPE BERNARDUS	2	2011–2016
KONINKLIJKE PHILIPS NV	2	2019
VAN EIBERGEN SANTHAGENS ROBERT ALEXANDER	2	2011–2016

Locations

Location	Patents	Span
Drachten, NL	11	1999–2016
Eindhoven, NL	2	2019