LexDanaLexDanabeta
Inventor

Fred T. Hazlehurst

Inventor
Union, NJ, US

Overview

7→
Patents
1988–2012
Patent span
Performing operations
Primary field (CPC B)

Patents· 7 as inventor

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

B01Dprimary
B01DSeparation33%
F04DNon-positive-displacement pumps22%
E04HBuildings or like structures for particular purposes11%
LOC1511%
LOC2311%
Y10TTechnical subjects covered by former us classification11%
PatentTitleYear
8,186,517'Strainer housing assembly and stand for pump'20127,531,092'Pump'2009D0550805'Strainer basket'2007D0425911'Pump'20005,068,033'Underdrain assembly with pivotally-mounted and lockable laterals'19914,818,389'Skimmer with flow enhancer'1989D0299143'Pump'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–2012Patents assigned to HAYWARD IND INC (5)· patent assignee history
1988–1989Based in Roselle Park, NJ, US· patent location history
1991–2012Based in Union, NJ, US· patent location history
2007Patents assigned to H TECH INC (1)· patent assignee history
2012Patents assigned to BOWMAN JOEL BRENT (1)· patent assignee history
2012Patents assigned to CLARK DWAYNE EMORY (1)· patent assignee history
2012Patents assigned to GRIFFIN RONALD H (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HAYWARD IND INC51988–2012
BOWMAN JOEL BRENT12012
CLARK DWAYNE EMORY12012
GRIFFIN RONALD H12012
H TECH INC12007
Locations
LocationPatentsSpan
Union, New Jersey, US51991–2012
Roselle Park, New Jersey, US21988–1989