Inventor · disambiguated record
Mark Campbell Logan
Also filed as: LOGAN MARK · LOGAN MARK C · LOGAN MARK CAMPBELL
19 granted patents·1 pending application·573 citations·filing 1995–2023
96Inventor score
Top patents by PatentIndex Score
20 records- 0195USD553781SVolumetric downlight light fixtureACUITY BRANDS INC·Filed 2006·Granted Oct 23, 2007·71 cites·1 claims
- 0292US5954423ALight distribution diffuser for exit signs and the like illuminated by LED arraysNSI ENTERPRISES INC·Filed 1997·Granted Sep 21, 1999·92 cites·19 claims
- 0392US5887968ALight distribution reflector for exit signs and the illuminated by LED arraysNAT SERVICE IND INC·Filed 1997·Granted Mar 30, 1999·96 cites·36 claims
- 0491US5797673AEmergency lighting unit/exit sign combinationNSI ENTERPRISES INC·Filed 1995·Granted Aug 25, 1998·80 cites·56 claims
- 0588US7350327B1Mounting devices for exit signs and other fixturesABL IP HOLDING LLC·Filed 2004·Granted Apr 1, 2008·32 cites·25 claims
- 0687US6499866B1Emergency lighting unit/exit sign combinationACUITY BRANDS INC·Filed 2000·Granted Dec 31, 2002·31 cites·31 claims
- 0786US6848798B1Emergency lighting unit/exit sign combinationACUITY BRANDS INC·Filed 2002·Granted Feb 1, 2005·28 cites·41 claims
- 0885US10744525B1Multi-cartridge drain guns, accessories therefor, and methods of use and manufacture thereofDIVERSITECH CORP·Filed 2019·Granted Aug 18, 2020·3 cites·30 claims
- 0980US10344945B2Luminaire with pre-assembled light engine and lensABL IP HOLDING LLC·Filed 2016·Granted Jul 9, 2019·3 cites·20 claims
- 1080US7845103B2Illuminated sign mounting structureACUITY BRANDS INC·Filed 2007·Granted Dec 7, 2010·11 cites·19 claims
- 1175US2024269702A1Multi-cartridge drain guns, accessories therefor, and methods of use and manufacture thereofDIVERSITECH CORP·Filed 2023·Application pending·0 cites
- 1271US7739818B2Illuminated sign insertABL IP Lighting LLC·Filed 2007·Granted Jun 22, 2010·2 cites·23 claims
- 1371US7563004B2Volumetric downlight light fixtureACUITY BRANDS INC·Filed 2007·Granted Jul 21, 2009·9 cites·20 claims
- 1471US6142648AEmergency lighting unit/exit sign combinationNSI ENTPR INC·Filed 1998·Granted Nov 7, 2000·40 cites·70 claims
- 1570US6193395B1Adjustable lamp assembly for industrial emergency fixturesNSI ENTPR INC·Filed 1999·Granted Feb 27, 2001·34 cites·29 claims
- 1669USD379373SCombined exit sign and emergency lamp deviceNAT SERVICE INDUSTRIES INC·Filed 1995·Granted May 20, 1997·18 cites·1 claims
- 1767US11731152B2Multi-cartridge drain guns, accessories therefor, and methods of use and manufacture thereofDIVERSITECH CORP·Filed 2020·Granted Aug 22, 2023·0 cites·28 claims
- 1866USD505222SIndustrial emergency unit luminaireACUITY BRANDS INC·Filed 2003·Granted May 17, 2005·14 cites·1 claims
- 1945USD419097SIndustrial emergency unit light fixtureNSI ENTERPRISES INC·Filed 1999·Granted Jan 18, 2000·5 cites·1 claims
- 2042USD602994SOval exit signABL IP HOLDING LLC·Filed 2008·Granted Oct 27, 2009·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →