Inventor

HERST DOUGLAS J

95 patents

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

ACUITY BRANDS INC

21 patents

US6709131B1Mar 23, 2004

Luminaire having a mock light source for improved source brightness control and method

ACUITY BRANDS INC104 citations97

USD500883SJan 11, 2005

Portion of a luminous housing for a lighting fixture

ACUITY BRANDS INC53 citations96

US6769785B1Aug 3, 2004

Edge connectable lighting fixture assembly

ACUITY BRANDS INC58 citations96

USD472668SApr 1, 2003

Lighting fixture housing

ACUITY BRANDS INC51 citations96

USD472667SApr 1, 2003

Lighting fixture housing

ACUITY BRANDS INC44 citations96

USD520176SMay 2, 2006

Portion of a lighting fixture

ACUITY BRANDS INC21 citations93

USD500882SJan 11, 2005

Portion of a luminous housing for a lighting fixture

ACUITY BRANDS INC18 citations93

USD496748SSep 28, 2004

Lighting fixture

ACUITY BRANDS INC20 citations93

USD496746SSep 28, 2004

Lighting fixture

ACUITY BRANDS INC40 citations93

USD481488SOct 28, 2003

Luminaire

ACUITY BRANDS INC27 citations93

USD480500SOct 7, 2003

Luminaire

ACUITY BRANDS INC29 citations93

USD480530SOct 7, 2003

Luminaire baffle structure

ACUITY BRANDS INC22 citations93

USD480502SOct 7, 2003

Luminaire

ACUITY BRANDS INC29 citations93

USD480503SOct 7, 2003

Luminaire

ACUITY BRANDS INC28 citations93

USD480501SOct 7, 2003

Luminaire

ACUITY BRANDS INC28 citations93

USD480172SSep 30, 2003

Luminaire

ACUITY BRANDS INC41 citations93

USD480168SSep 30, 2003

Luminaire

ACUITY BRANDS INC39 citations93

USD477105SJul 8, 2003

Lighting fixture assembly

ACUITY BRANDS INC43 citations93

USD473007SApr 8, 2003

Lighting fixture housing edge

ACUITY BRANDS INC35 citations93

USD472666SApr 1, 2003

Lighting fixture housing end

ACUITY BRANDS INC40 citations93

USD472665SApr 1, 2003

Lighting fixture housing end

ACUITY BRANDS INC40 citations93

PEERLESS LIGHTING CORP

20 patents

USD421815SMar 21, 2000

Wall wash luminaire

PEERLESS LIGHTING CORP54 citations96

US5884994AMar 23, 1999

Direct-indirect luminaire with improved down light control

PEERLESS LIGHTING CORP73 citations96

USD397818SSep 1, 1998

Direct indirect luminaire housing

PEERLESS LIGHTING CORP51 citations96

USD377993SFeb 11, 1997

Indirect lighting fixture

PEERLESS LIGHTING CORP79 citations96

USD349358SAug 2, 1994

Indirect lighting fixture

PEERLESS LIGHTING CORP81 citations96

USD330438SOct 20, 1992

Indirect lighting fixture

PEERLESS LIGHTING CORP62 citations96

US4939627AJul 3, 1990

Indirect luminaire having a secondary source induced low brightness lens element

PEERLESS LIGHTING CORP61 citations96

US4667275AMay 19, 1987

Luminaire for indirect lighting

PEERLESS LIGHTING CORP55 citations96

USD405907SFeb 16, 1999

Luminaire

PEERLESS LIGHTING CORP30 citations93

USD405906SFeb 16, 1999

Luminaire housing

PEERLESS LIGHTING CORP18 citations93

USD405908SFeb 16, 1999

Luminaire

PEERLESS LIGHTING CORP39 citations93

USD404161SJan 12, 1999

Luminaire

PEERLESS LIGHTING CORP28 citations93

USD401000SNov 10, 1998

Direct-indirect luminaire housing

PEERLESS LIGHTING CORP25 citations93

USD401001SNov 10, 1998

Direct-indirect luminaire housing

PEERLESS LIGHTING CORP26 citations93

USD397480SAug 25, 1998

Direct-indirect luminaire housing

PEERLESS LIGHTING CORP17 citations93

USD349357SAug 2, 1994

Indirect lighting fixture

PEERLESS LIGHTING CORP21 citations93

USD348950SJul 19, 1994

Indirect lighting fixture

PEERLESS LIGHTING CORP29 citations93

USD348533SJul 5, 1994

Indirect lighting fixture

PEERLESS LIGHTING CORP22 citations93

USD348534SJul 5, 1994

Indirect lighting fixture

PEERLESS LIGHTING CORP40 citations93

USD318929SAug 6, 1991

Indirect luminaire

PEERLESS LIGHTING CORP25 citations93

NSI ENTPR INC

7 patents

US6345800B1Feb 12, 2002

Universal load-bearing hanger bracket and method for hanging a lighting fixture below a grid ceiling system at on-grid or off-grid locations

NSI ENTPR INC169 citations99

USD418626SJan 4, 2000

Section of linear luminaire housing

NSI ENTPR INC131 citations99

US6247828B1Jun 19, 2001

Unitary extruded housing for direct-indirect luminaire

NSI ENTPR INC49 citations96

USD441891SMay 8, 2001

Luminaire housing

NSI ENTPR INC17 citations93

US6193394B1Feb 27, 2001

Direct-indirect luminaire having improved down light glare control

NSI ENTPR INC32 citations93

USD434519SNov 28, 2000

End cap for a luminaire housing

NSI ENTPR INC17 citations93

USD414580SSep 28, 1999

Direct-indirect luminaire housing

NSI ENTPR INC23 citations93

HERST DOUGLAS J

1 patent

USD362315SSep 12, 1995

Direct indirect fluorescent lighting fixture

HERST DOUGLAS J50 citations95

NSI ENTERPRISES INC

1 patent

USD426338SJun 6, 2000

Housing for mostly indirect luminaire

NSI ENTERPRISES INC26 citations93

Showing the top 50 of 95 patents by PatentIndex Score.