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Inventor

Weldon R. Hudson

Inventor
Austin, TX, US

Overview

3→
Patents
1991–1992
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.

F01Bprimary
F01BMachines or engines, in general or of positive-displacement type, e.g. steam engines38%
F01LCyclically operating valves for machines or engines38%
Y10TTechnical subjects covered by former us classification25%
PatentTitleYear
5,129,414'Expansible chamber device having variably restrained valve systems'19925,111,843'Expansible chamber device having variably restrained valve systems'19924,981,068'Expansible chamber device having variably restrained valve systems'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1992Patents assigned to GLASS THOMAS R (3)· patent assignee history
1991–1992Patents assigned to HUDSON WELDON R (3)· patent assignee history
1991–1992Based in Austin, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GLASS THOMAS R31991–1992
HUDSON WELDON Rself31991–1992
Locations
LocationPatentsSpan
Austin, Texas, US31991–1992