P

Inventor

PLUMB JOHN L

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

GTE PROD CORP

3 patents
US5111108AMay 5, 1992

Vapor discharge device with electron emissive material

GTE PROD CORP24 citations87
US4506193AMar 19, 1985

Thin film electroluminescent display

GTE PROD CORP4 citations60
US4229681AOct 21, 1980

Frequency/sensitive switching circuit

GTE PROD CORP6 citations60

GTE SYLVANIA INC

2 patents
US4190790AFeb 26, 1980

Isolator circuit for use with frequency sensitive switching circuit

GTE SYLVANIA INC7 citations71
US4169259ASep 25, 1979

Frequency sensitive switching circuit

GTE SYLVANIA INC9 citations71

OSRAM SYLVANIA INC

1 patent
US6268696B1Jul 31, 2001

Mercury and lead free high pressure sodium lamp

OSRAM SYLVANIA INC6 citations60