Inventor

John C. Richards

Inventor

Union Grove, AL, US

Overview

1979–1999

Patent span

Mechanical engineering

Primary field (CPC F)

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

F01Dprimary

F01DNon-positive displacement machines or engines, e.g. steam turbines14%

F02CGas-turbine plants14%

F15BSystems acting by means of fluids in general14%

H04LTransmission of digital information, e.g. telegraphic communication14%

Y10TTechnical subjects covered by former us classification14%

C12MApparatus for enzymology or microbiology7%

G01NInvestigating or analysing materials by determining their chemical or physical properties7%

H04JMultiplex communication7%

H04MTelephonic communication7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1979Patents assigned to NAT RES DEV (1)· patent assignee history

1979Based in Old Aberdeen, GB· patent location history

1989Patents assigned to UNIVERSAL DATA SYSTEMS INC (1)· patent assignee history

1989Based in Huntsville, AL, US· patent location history

1991–1992Patents assigned to GEN ELECTRIC (2)· patent assignee history

1991–1992Based in Mason, OH, US· patent location history

1997–1999Patents assigned to MOTOROLA INC (2)· patent assignee history

1997–1999Based in Union Grove, AL, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations