HJ

Harold L. Rothwell, Jr.

GP Gte Products: 31 patents #12 of 928Top 2%
OS Osram Sylvania: 15 patents #43 of 820Top 6%
📍 Rowley, MA: #3 of 70 inventorsTop 5%
🗺 Massachusetts: #1,352 of 88,656 inventorsTop 2%
Overall (All Time): #61,121 of 4,157,543Top 2%
47
Patents All Time

Issued Patents All Time

Showing 1–25 of 47 patents

Patent #TitleCo-InventorsDate
8581482 PAR lamp and method of making same Louie Veiga, Renaud Richard 2013-11-12
8456072 Ultraviolet enhancer (UVE) holder Mary Berger 2013-06-04
8110973 Integrally ballasted lamp assembly including a spacer disk Renaud Richard, Louie Veiga, Randall D. Brown 2012-02-07
7931514 Method of making an integral HID reflector lamp Jason Li, Andrew Johnsen, Glenn Freeman, Randall D. Brown 2011-04-26
7919926 Aggregate ignition method in high frequency metal halide lamps Andrew Johnsen, Phillip Whitt 2011-04-05
D630773 Neck portion of a par lamp Jason Li, Jane Beasley, David M. Hrubowchak 2011-01-11
7575343 Faceted par lamp Jason Li, David M. Hrubowchak 2009-08-18
D597226 Reflector lamp Renaud Richard, Louie Veiga 2009-07-28
6812644 Reduced mercury ceramic metal halide lamp Nikolay Natchev, Lori Brock 2004-11-02
6313578 Phosphor coating for gas discharge lamps and lamp containing same Kailash C. Mishra, Thomas E. Peters, Jean Evans 2001-11-06
6130511 Neon discharge lamp for generating amber light Thomas E. Peters, Jean Evans, Anthony F. Kasenga 2000-10-10
5997162 Horizontal HID vehicle headlamp with magnetic deflection George J. English, Michael Tucker, Jean Evans 1999-12-07
5856726 Electric lamp with a threaded electrode Jean Evans 1999-01-05
5666031 Neon gas discharge lamp and method of pulsed operation Scott D. Jennato 1997-09-09
5565741 Method of operating a neon discharge lamp particularly useful on a vehicle Scott D. Jennato, Robert Colburn 1996-10-15
5523655 Neon fluorescent lamp and method of operating Scott D. Jennato, George J. English 1996-06-04
5101134 Low wattage metal halide capsule shape Betina Desmarais 1992-03-31
5051665 Fast warm-up ballast for arc discharge lamp Robert L. Garrison 1991-09-24
5043634 Pulsed light source Peter J. Van Peenen, George J. English 1991-08-27
5036256 Arc discharge ballast suitable for automotive applications Robert L. Garrison 1991-07-30
4920459 Arc discharge headlamp system George J. English 1990-04-24
4884009 Color selectable source for pulsed arc discharge lamps Jeffrey O. Grant 1989-11-28
4874988 Pulsed metal halide arc discharge light source George J. English, Donald F. Garrity, Jr. 1989-10-17
4864180 Metal-halide arc tube and lamp having improved uniformity of azimuthal luminous intensity George J. English, Thomas J. Gilligan 1989-09-05
4850918 Pulsed metal halide source George J. English, Donald F. Garrity, Jr. 1989-07-25