Inventor

John G. Crawford

Inventor
Louisville, KY, US

Overview

11→
Patents
1979–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 11 as inventor

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

A47Lprimary
A47LDomestic washing or cleaning17%
Y10TTechnical subjects covered by former us classification14%
F02BInternal-combustion piston engines10%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof10%
Y02TClimate change mitigation technologies related to transportation10%
F02DControlling combustion engines7%
A01KAnimal husbandry3%
B67BApplying closure members to bottles jars, or similar containers3%
C12NMicroorganisms or enzymes3%
D06FLaundering, drying, ironing, pressing or folding textile articles3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1982Patents assigned to GEN ELECTRIC (6)· patent assignee history
1979–1982Based in Louisville, KY, US· patent location history
1985Patents assigned to BLACK & DECKER INC (1)· patent assignee history
1985Based in Monroe, CT, US· patent location history
2005Patents assigned to WESTPORT GERMANY GMBH (1)· patent assignee history
2005–2006Based in Richmond, CA· patent location history
2007Patents assigned to WESTPORT POWER INC (1)· patent assignee history
2007Based in Etobicoke, CA· patent location history
2021Patents assigned to HERA TESTING LABORATORIES INC (1)· patent assignee history
2021Based in Lexington, KY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN ELECTRIC61979–1982
BLACK & DECKER INC11985
HERA TESTING LABORATORIES INC12021
WESTPORT GERMANY GMBH12005
WESTPORT POWER INC12007
Locations
LocationPatentsSpan
Louisville, KY, US61979–1982
Richmond, CA22005–2006
Lexington, KY, US12021
Etobicoke, CA12007
Monroe, CT, US11985