P

Inventor

SITZEMA JR RONALD L

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

ODL INC

3 patents
US5983581ANov 16, 1999

Tubular skylight with offset dome

ODL INC54 citations95
US5655339AAug 12, 1997

Tubular skylight with improved dome

ODL INC130 citations95
USRE38217EAug 19, 2003

Tubular skylight with improved dome

ODL INC26 citations88

SIEMENS SOLAR IND LP

3 patents
US5228772AJul 20, 1993

Solar powered lamp having a cover containing a fresnel lens structure

SIEMENS SOLAR IND LP27 citations91
USD333008SFeb 2, 1993

Adjustable exterior light

SIEMENS SOLAR IND LP10 citations73
USD332669SJan 19, 1993

Solar powered light with motion sensor

SIEMENS SOLAR IND LP6 citations73

GTE PROD CORP

2 patents
USD270577SSep 13, 1983

Luminaire reflector

GTE PROD CORP70 citations94
US4398239AAug 9, 1983

Luminaire adapted for horizontal and vertical operation

GTE PROD CORP32 citations92

LEXALITE INTERNAT CORP

2 patents
US6698908B2Mar 2, 2004

Lighting fixture optical assembly including relector/refractor and collar for enhanced directional illumination control

LEXALITE INTERNAT CORP39 citations86
US6575601B1Jun 10, 2003

Lighting fixture optical assembly including relector/refractor and shroud

LEXALITE INTERNAT CORP26 citations85

DENTSPLY RES & DEV

1 patent
US4867682ASep 19, 1989

Dental impression tray

DENTSPLY RES & DEV86 citations96

ELECTROLUX CORP

1 patent
US5207498AMay 4, 1993

Vacuum cleaner headlight

ELECTROLUX CORP57 citations95

LEXALITE INT CORP

1 patent
US4839781AJun 13, 1989

Reflector/refractor

LEXALITE INT CORP100 citations94