SP

Spencer Preston

SC Speedfam Co.: 2 patents #28 of 105Top 30%
IN Intel: 1 patents #18,218 of 30,777Top 60%
📍 Portland, OR: #3,205 of 9,213 inventorsTop 35%
🗺 Oregon: #8,503 of 28,073 inventorsTop 35%
Overall (All Time): #1,256,989 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6986705 Polishing pad and method of making same Doug Hutchins, Steve Hymes 2006-01-17
5791975 Backing pad Joseph V. Cesna, Chris Karlsrud 1998-08-11
5498199 Wafer polishing method and apparatus Chris Karlsrud, Anthony G. Van Woerkom, Shigeru Odagiri, Isao Nagahashi 1996-03-12
5081051 Method for conditioning the surface of a polishing pad Wayne Mattingly, Seiichi Morimoto 1992-01-14