Inventor
Joseph M. Urish
Inventor
Shawnee Township, Allen County, OH, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems43%
H05BElectric heating29%
G05DSystems for controlling or regulating non-electric variables14%
H03KPulse technique14%
PatentTitleYear
6,320,773'Transformer/rectifier for aircraft ground power unit'20014,728,817'Power transistor drive circuit'19884,434,358'Aircraft window heat controller with switched impedances'19844,357,524'Electrical heater controller for aircraft window heat control'19824,342,076'Transistor turn off current sensing circuit'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1988Patents assigned to WESTINGHOUSE ELECTRIC CORP (4)· patent assignee history
1982–1988Based in Shawnee Township, Allen County, OH, US· patent location history
1982–1984Based in Shawnee, OH, US· patent location history
2001Patents assigned to ILLINOIS TOOL WORKS (1)· patent assignee history
2001Based in Lima, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTINGHOUSE ELECTRIC CORP | 4 | 1982–1988 |
| ILLINOIS TOOL WORKS | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shawnee Township, Allen County, OH, US | 2 | 1982–1988 |
| Shawnee, OH, US | 2 | 1982–1984 |
| Lima, OH, US | 1 | 2001 |