Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CP

Charles M. Princell

NVIDIA: 4 patents #1,685 of 7,811Top 25%
PCPlastics Technology Corporation): 1 patents #3 of 21Top 15%
Hickory, NC: #139 of 547 inventorsTop 30%
North Carolina: #10,032 of 45,564 inventorsTop 25%
Overall (All Time): #1,012,264 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8371338 Foam insulation structure and method for insulating annular ducts Mike Resetar 2013-02-12
8186388 Composite insulation structure for the insulation of the interior surface of annular ducts Bruce Althouse 2012-05-29
7854240 Polymeric foam tube insulations and method for continuously producing such a tube Mika Meller, Juerg Weibel, Stephen C. Davis, Scott White 2010-12-21
6902784 Composite pressure sensitive insulation joining construction Kartik Patel, Holger Johann 2005-06-07
6428651 Method and apparatus for applying adhesives to the edges of a slit tube Bill Alvey, Steve Fox, Robert L. Campbell 2002-08-06