Inventor
Walter B. Warren
Inventor
Seabrook, TX, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling22%
F02BInternal-combustion piston engines11%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
G01SRadio direction-finding11%
G05DSystems for controlling or regulating non-electric variables11%
G08GTraffic control systems11%
H02HEmergency protective circuit arrangements11%
H04BTransmission11%
PatentTitleYear
5,917,430'Radar based highway safety warning system'19994,648,124'Apparatus for locating passive intermodulation interference sources'19874,309,734'Methods and apparatus for limiting electrical current to a subsea petroleum installation'19824,282,487'Subsea hydrocarbon sensor system'19814,205,379'Position determining and dynamic positioning method and system for floating marine well drill platforms and the like'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1982Patents assigned to TRW INC (3)· patent assignee history
1980–1982Based in Seabrook, TX, US· patent location history
1987Patents assigned to US AIR FORCE (1)· patent assignee history
1987–1999Based in Marietta, GA, US· patent location history
1999Patents assigned to SAFETY WARNING SYSTEM L C (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TRW INC | 3 | 1980–1982 |
| SAFETY WARNING SYSTEM L C | 1 | 1999 |
| US AIR FORCE | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seabrook, Texas, US | 3 | 1980–1982 |
| Marietta, Georgia, US | 2 | 1987–1999 |