Inventor
Mark Campbell Logan
Inventor
Atlanta, GA, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G09Fprimary
G09FDisplaying23%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
G08BSignalling systems, e.g. personal calling systems13%
F21SNon-portable lighting devices8%
F21VFunctional features or details of lighting devices or systems thereof8%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted8%
LOC205%
LOC265%
B05BSpraying apparatus3%
B08BCleaning in general3%
PatentTitleYear
10,744,525Multi-cartridge drain guns, accessories therefor, and methods of use and manufacture thereof202010,344,945Luminaire with pre-assembled light engine and lens20197,845,103'Illuminated sign mounting structure'20107,739,818'Illuminated sign insert'2010D0602994'Oval exit sign'20097,563,004'Volumetric downlight light fixture'20097,350,327'Mounting devices for exit signs and other fixtures'2008D0553781'Volumetric downlight light fixture'2007D0505222'Industrial emergency unit luminaire'20056,848,798'Emergency lighting unit/exit sign combination'20056,499,866'Emergency lighting unit/exit sign combination'20026,193,395'Adjustable lamp assembly for industrial emergency fixtures'20016,142,648'Emergency lighting unit/exit sign combination'2000D0419097'Industrial emergency unit light fixture'20005,954,423'Light distribution diffuser for exit signs and the like illuminated by LED arrays'19995,887,968'Light distribution reflector for exit signs and the illuminated by LED arrays'19995,797,673'Emergency lighting unit/exit sign combination'1998D0379373'Combined exit sign and emergency lamp device'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2005Based in Doraville, GA, US· patent location history
1998–2000Patents assigned to NSI ENTERPRISES INC (3)· patent assignee history
2000–2001Patents assigned to NSI ENTPR INC (2)· patent assignee history
2002–2010Patents assigned to ACUITY BRANDS INC (6)· patent assignee history
2005–2020Based in Atlanta, GA, US· patent location history
2008–2019Patents assigned to ABL IP HOLDING LLC (3)· patent assignee history
2010Patents assigned to ABL IP Lighting LLC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ACUITY BRANDS INC | 6 | 2002–2010 |
| ABL IP HOLDING LLC | 3 | 2008–2019 |
| NSI ENTERPRISES INC | 3 | 1998–2000 |
| NSI ENTPR INC | 2 | 2000–2001 |
| ABL IP Lighting LLC | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Atlanta, Georgia, US | 9 | 2005–2020 |
| Doraville, Georgia, US | 9 | 1997–2005 |