Mark C. Logan

Person

Doraville, GA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Emergency lighting unit/exit sign combination
- Patent number 6,848,798
- Issue date Feb 1, 2005
- Acuity Brands, Inc.
- Mark Campbell Logan
- G08 - SIGNALLING
Information Patent Grant
Emergency lighting unit/exit sign combination
- Patent number 6,499,866
- Issue date Dec 31, 2002
- Acuity Brands, Inc.
- Mark Campbell Logan
- G08 - SIGNALLING
Information Patent Grant
Adjustable lamp assembly for industrial emergency fixtures
- Patent number 6,193,395
- Issue date Feb 27, 2001
- NSI Enterprises, Inc.
- Mark C. Logan
- F21 - LIGHTING
Information Patent Grant
Emergency lighting unit/exit sign combination
- Patent number 6,142,648
- Issue date Nov 7, 2000
- NSI Enterprises, Inc.
- Mark Campbell Logan
- G08 - SIGNALLING
Information Patent Grant
Industrial emergency unit light fixture
- Patent number D419097
- Issue date Jan 18, 2000
- NSI Enterprises, Inc.
- Paul Kenneth Pickard
- D10 - Measuring, testing, or signalling instruments
Information Patent Grant
Light distribution diffuser for exit signs and the like illuminated...
- Patent number 5,954,423
- Issue date Sep 21, 1999
- NSI Enterprises, Inc.
- Mark Campbell Logan
- G08 - SIGNALLING
Information Patent Grant
Light distribution reflector for exit signs and the illuminated by...
- Patent number 5,887,968
- Issue date Mar 30, 1999
- National Service Industries, Inc.
- Mark Campbell Logan
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Emergency lighting unit/exit sign combination
- Patent number 5,797,673
- Issue date Aug 25, 1998
- NSI Enterprises, Inc.
- Mark Campbell Logan
- G08 - SIGNALLING
Information Patent Grant
Combined exit sign and emergency lamp device
- Patent number D379373
- Issue date May 20, 1997
- National Service Industries, Inc.
- Mark C. Logan
- D20 - Sales and advertising equipment

Mark C. Logan

Person

Patents Grantslast 30 patents

Emergency lighting unit/exit sign combination

Emergency lighting unit/exit sign combination

Adjustable lamp assembly for industrial emergency fixtures

Emergency lighting unit/exit sign combination

Industrial emergency unit light fixture

Light distribution diffuser for exit signs and the like illuminated...

Light distribution reflector for exit signs and the illuminated by...

Emergency lighting unit/exit sign combination

Combined exit sign and emergency lamp device