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Inventor

Bruce Frazier

Inventor
Dunlap, IL, US

Overview

4→
Patents
1976–2013
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

B01Dprimary
B01DSeparation33%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general33%
F16JPistons11%
F16LPipes11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
8,608,834'Filter service system and method'20138,252,093'Filter service system and method'20127,410,529'Filter service system and method'20083,967,841'High pressure tubular swivel joint'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Based in Coffeyville, KS, US· patent location history
2008–2013Patents assigned to CATERPILLAR INC (2)· patent assignee history
2008–2013Based in Dunlap, IL, US· patent location history
2012–2013Patents assigned to CRANDELL RICHARD A (2)· patent assignee history
2012–2013Patents assigned to DACOSTA HERBERT (2)· patent assignee history
2012–2013Patents assigned to FEI DONG (2)· patent assignee history
2012–2013Patents assigned to FLETCHER MATTHEW (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CATERPILLAR INC22008–2013
CRANDELL RICHARD A22012–2013
DACOSTA HERBERT22012–2013
FEI DONG22012–2013
FLETCHER MATTHEW22012–2013
Locations
LocationPatentsSpan
Dunlap, Illinois, US32008–2013
Coffeyville, KS, US11976