Inventor
ROTHWELL JR HAROLD L
33 patents
⚠️ This page may combine multiple inventors who share the name “ROTHWELL JR HAROLD L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GTE PROD CORP
24 patentsUS4920459AApr 24, 1990
Arc discharge headlamp system
GTE PROD CORP75 citations96
US4348615ASep 7, 1982
Discharge lamp operating circuit
GTE PROD CORP35 citations92
US5043634AAug 27, 1991
Pulsed light source
GTE PROD CORP41 citations89
US4874988AOct 17, 1989
Pulsed metal halide arc discharge light source
GTE PROD CORP23 citations81
US4847530AJul 11, 1989
Arc discharge lamp with elongated outer envelope orthogonal to lamp base
GTE PROD CORP8 citations74
US4557700ADec 10, 1985
Metal halide discharge lamp gas fill process to provide minimal color separation
GTE PROD CORP9 citations74
US4528478AJul 9, 1985
Single-ended metal halide discharge lamp with minimal color separation
GTE PROD CORP8 citations74
US4454450AJun 12, 1984
Vertical running, high brightness, low wattage metal halide lamp
GTE PROD CORP7 citations74
US4415829ANov 15, 1983
Direct current operable arc lamp
GTE PROD CORP12 citations74
US4321504AMar 23, 1982
Low wattage metal halide arc discharge lamp
GTE PROD CORP16 citations74
US4302699ANov 24, 1981
Low wattage metal halide arc discharge lamp having optimum efficacy
GTE PROD CORP9 citations74
US4320322AMar 16, 1982
Electrode geometry to improve arc stability
GTE PROD CORP16 citations73
US4308483ADec 29, 1981
High brightness, low wattage, high pressure, metal vapor discharge lamp
GTE PROD CORP12 citations73
US4864180ASep 5, 1989
Metal-halide arc tube and lamp having improved uniformity of azimuthal luminous intensity
GTE PROD CORP18 citations72
US5101134AMar 31, 1992
Low wattage metal halide capsule shape
GTE PROD CORP16 citations69
US4766348AAug 23, 1988
Single-ended metal halogen lamp and fabrication process employing ionization potential selection of additive gases
GTE PROD CORP7 citations68
US4884009ANov 28, 1989
Color selectable source for pulsed arc discharge lamps
GTE PROD CORP12 citations66
US4612000ASep 16, 1986
Single-ended metal halide discharge lamps and process of manufacture
GTE PROD CORP6 citations63
US4321501AMar 23, 1982
Low wattage, high pressure metal vapor discharge lamp for minimizing detrimental glow time
GTE PROD CORP3 citations63
US4636687AJan 13, 1987
Electrode alignment and capsule design for single-ended low wattage metal halide lamps
GTE PROD CORP6 citations62
US4620130AOct 28, 1986
Electrode alignment and capsule design for single-ended low wattage metal halide lamps
GTE PROD CORP3 citations62
US4850918AJul 25, 1989
Pulsed metal halide source
GTE PROD CORP4 citations61
US4376259AMar 8, 1983
High intensity discharge lamp including arc extinguishing means
GTE PROD CORP4 citations59
US4390811AJun 28, 1983
High intensity discharge lamp including arc extinguishing means
GTE PROD CORP3 citations56
OSRAM SYLVANIA INC
7 patentsUS5523655AJun 4, 1996
Neon fluorescent lamp and method of operating
OSRAM SYLVANIA INC29 citations91
US5666031ASep 9, 1997
Neon gas discharge lamp and method of pulsed operation
OSRAM SYLVANIA INC30 citations86
US5856726AJan 5, 1999
Electric lamp with a threaded electrode
OSRAM SYLVANIA INC18 citations82
US6130511AOct 10, 2000
Neon discharge lamp for generating amber light
OSRAM SYLVANIA INC13 citations73
US5565741AOct 15, 1996
Method of operating a neon discharge lamp particularly useful on a vehicle
OSRAM SYLVANIA INC7 citations70
USD630773SJan 11, 2011
Neck portion of a par lamp
OSRAM SYLVANIA INC5 citations57
US6812644B2Nov 2, 2004
Reduced mercury ceramic metal halide lamp
OSRAM SYLVANIA INC0 citations44