LexDanaLexDanabeta
Inventor

Grant K. Tappen

Inventor
Washington, MI, US

Overview

4→
Patents
2004–2013
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.

F02Fprimary
F02FCylinders, pistons or casings, for combustion engines30%
F16CShafts20%
F02BInternal-combustion piston engines10%
F02DControlling combustion engines10%
F05CIndexing scheme relating to materials, material properties or material characteristics for machines, engines or pumps other than non-positive-displacement machines or engines10%
F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
8,585,547'System and method for preventing icing in positive crankcase ventilation systems'20137,284,528'Crank shaft support assembly'20076,732,699'Cast iron cylinder liner with laser-hardened flange fillet'20046,715,458'Engine block crankshaft bearings'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to GEN MOTORS CORP (2)· patent assignee history
2004–2013Based in Washington, MI, US· patent location history
2007Patents assigned to USAMP (1)· patent assignee history
2013Patents assigned to GM GLOBAL TECH OPERATIONS INC (1)· patent assignee history
2013Patents assigned to SPIX THOMAS A (1)· patent assignee history
2013Patents assigned to TAPPEN GRANT K (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN MOTORS CORP22004
GM GLOBAL TECH OPERATIONS INC12013
SPIX THOMAS A12013
TAPPEN GRANT Kself12013
USAMP12007
Locations
LocationPatentsSpan
Washington, MI, US42004–2013