P

Inventor

CARLSON DONALD E

US6 patents
⚠️ This page may combine multiple inventors who share the name “CARLSON DONALD E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MARK CONTROLS CORP

3 patents
US4368756AJan 18, 1983

Check valve

MARK CONTROLS CORP64 citations94
US4117856AOct 3, 1978

Frostproof backflow preventer

MARK CONTROLS CORP50 citations90
US4112966ASep 12, 1978

Ejector purge hydrant

MARK CONTROLS CORP33 citations90

MARTIN AUTOMATIC INC

1 patent
US4859270AAug 22, 1989

In-register web splicer

MARTIN AUTOMATIC INC26 citations91

TEXAS INSTRUMENTS INC

1 patent
US4474047AOct 2, 1984

Method and apparatus for inherent rotary joint calibration

TEXAS INSTRUMENTS INC16 citations71

LEE ALVIN

1 patent
US8626570B2Jan 7, 2014

Method and system for data quality management

LEE ALVIN4 citations65