Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MR

Mark D. Rowan — 12 Patents

GTGriffin Technology: 4 patents #14 of 40Top 35%
WEWhite'S Electronics: 4 patents #2 of 26Top 8%
VIVeris Industries: 3 patents #14 of 48Top 30%
Nashville, TN: #122 of 2,243 inventorsTop 6%
Tennessee: #1,515 of 20,272 inventorsTop 8%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Mark D. Rowan has been granted 12 US patents while listed as an inventor at Griffin Technology. The first was granted in 1996 and the most recent in January 2024. Mark D. Rowan ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Mark D. Rowan in Nashville, TN, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
11869293 Building control systems Patrick Biggin 2024-01-09
D773432 Amplifier Eugenio Duarte 2016-12-06
9424975 Split core transformer with self-aligning cores Martin Cook, Marc Bowman, Troy Earl Wecker, Mark S. Taft, Gary Richmond +3 more 2016-08-23
D752955 Cord holder 2016-04-05
9177718 Sensing transformer with pivotable and rotatable split cores Martin Cook, Marc Bowman, Troy Earl Wecker, Mark S. Taft, Gary Richmond +3 more 2015-11-03
9147546 Self-calibrating current switch with display Joel Hart, Troy Earl Wecker 2015-09-29
8527782 Power hub Paul Griffin, Beat Zenerino, Cameron E. Boone, Lester V. Marks, David M. Reynolds 2013-09-03
8054042 Modular power supply Paul Griffin, David A. Owens 2011-11-08
6911823 Metal detector employing static discrimination 2005-06-28
6879161 Method and apparatus for distinguishing metal objects employing multiple frequency interrogation 2005-04-12
5596277 Method and apparatus for displaying signal information from a metal detector 1997-01-21
5523690 Metal detector with bivariate display 1996-06-04