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Inventor

Fred Zwicker

Inventor
Canfield, OH, US

Overview

10→
Patents
1987–2001
Patent span
Performing operations
Primary field (CPC B)

Patents· 10 as inventor

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

B24Cprimary
B24CAbrasive or related blasting with particulate material25%
B26FPerforating13%
F16KValves13%
F16LPipes13%
LOC0613%
LOC1513%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
D0445118'Abrasive blasting cabinet'2001D0417981'Soda bar'1999D0370490'Air turbine spray device'1996D0368103'Air turbine spray device'1996D0326543'Vacuum system for collecting dust from sandblasting cabinets'1992D0323607'Sandblasting gun'1992D0323661'Sandblasting cabinet'19924,947,589'Sandblasting valving device'19904,796,925'Safety retainer clip'19894,698,940'Sandblast shutoff valve'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to TRUMAN S INC (1)· patent assignee history
1987–2001Based in Canfield, OH, US· patent location history
1989–1999Patents assigned to ZWICKER FRED (2)· patent assignee history
1992–1996Patents assigned to TRUMANS INC (3)· patent assignee history
1992–2001Patents assigned to SKAT BLAST INC (2)· patent assignee history
1992Patents assigned to Skat Blast (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TRUMANS INC31992–1996
SKAT BLAST INC21992–2001
ZWICKER FREDself21989–1999
Skat Blast11992
TRUMAN S INC11987
Locations
LocationPatentsSpan
Canfield, OH, US101987–2001