DH

Donald W. Harrison

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #1,222,495 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8857565 Method for making acoustical panels with a three-dimensional surface Jacque S. Harrison 2014-10-14
6610160 Method for resurfacing a ceiling tile 2003-08-26
4894102 Method for refinishing building panels Kenneth F. Halls 1990-01-16
4740257 Ceiling tile covering system Kenneth F. Halls 1988-04-26