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Inventor

Leon Helfet

Inventor
Camarillo, CA, US

Overview

7→
Patents
2001–2013
Patent span
Human necessities
Primary field (CPC A)

Patents· 7 as inventor

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

A01Kprimary
A01KAnimal husbandry50%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding25%
C02FTreatment of water, waste water, sewage, or sludge13%
E03DWater-closets or urinals with flushing devices13%
PatentTitleYear
8,567,348'Manual litter box'20137,997,230'Manual litter box'20117,601,258'Aquarium filter water return chamber'20097,425,274'Aquarium filter unit'20087,155,999'Strap wrench for gripping and turning generally cylindrical objects'20076,789,450'Manually operated strap wrench for turning generally cylindrical objects'20046,178,563'Toilet deodorizer'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2013Based in Camarillo, CA, US· patent location history
2007–2013Patents assigned to HELFET LEON (4)· patent assignee history
2011Patents assigned to LUCKY LITTER LLC (1)· patent assignee history
2013Patents assigned to AUGUSTYNIAK KEVIN JOHN (1)· patent assignee history
2013Patents assigned to COOK ALAN JAY (1)· patent assignee history
2013Patents assigned to DEVLIN THOMAS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HELFET LEONself42007–2013
AUGUSTYNIAK KEVIN JOHN12013
COOK ALAN JAY12013
DEVLIN THOMAS12013
LUCKY LITTER LLC12011
Locations
LocationPatentsSpan
Camarillo, California, US72001–2013