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Inventor

William F. Spruit

Inventor
Grand Blanc, MI, US

Overview

3→
Patents
2010–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

F01Lprimary
F01LCyclically operating valves for machines or engines13%
F02BInternal-combustion piston engines13%
F02FCylinders, pistons or casings, for combustion engines13%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof13%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids13%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications13%
Y02TClimate change mitigation technologies related to transportation13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
10,718,258Spark-ignited direct-injection engine combustion systems20208,662,033'Modular engine assembly and fluid control assembly for hydraulically-actuated mechanism'20147,765,993'Compressor inlet duct'2010

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010–2014Patents assigned to GM GLOBAL TECH OPERATIONS INC (2)· patent assignee history
2010–2020Based in Grand Blanc, MI, US· patent location history
2014Patents assigned to DOUSE ERIC C (1)· patent assignee history
2014Patents assigned to GALLON ROBERT JACK (1)· patent assignee history
2014Patents assigned to HAYMAN ALAN W (1)· patent assignee history
2020Patents assigned to GM GLOBAL TECH OPERATIONS LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GM GLOBAL TECH OPERATIONS INC22010–2014
DOUSE ERIC C12014
GALLON ROBERT JACK12014
GM GLOBAL TECH OPERATIONS LLC12020
HAYMAN ALAN W12014
Locations
LocationPatentsSpan
Grand Blanc, MI, US32010–2020