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

Robert W. Conn

PTPlasma & Materials Technologies: 5 patents #1 of 9Top 15%
LGLeybold Gmbh: 2 patents #119 of 430Top 30%
Los Angeles, CA: #1,800 of 12,377 inventorsTop 15%
California: #82,707 of 386,348 inventorsTop 25%
Overall (All Time): #765,017 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5656141 Apparatus for coating substrates Hans-Georg Betz, Gregor A. Campbell, Karl Matl, Peter Sommerkamp, Alfons Zoeller +1 more 1997-08-12
5429070 High density plasma deposition and etching apparatus Gregor A. Campbell, Dan Katz, N. William Parker, Alexis de Chambrier 1995-07-04
5421891 High density plasma deposition and etching apparatus Gregor A. Campbell, Dan Katz, N. William Parker, David Ian Charles Pearson 1995-06-06
5122251 High density plasma deposition and etching apparatus Gregor A. Campbell, David C. Pearson, Alexis P. deChambrier, Tatsuo Shoji 1992-06-16
5091049 High density plasma deposition and etching apparatus Gregor A. Campbell, Tatsuo Shoji 1992-02-25
4990229 High density plasma deposition and etching apparatus Gregor A. Campbell, Tatsuo Shoji 1991-02-05
4885070 Method and apparatus for the application of materials Gregor A. Campbell, Dan M. Goebel, Rolf Adam, Hans Aichert, Hans-Georg Betz +7 more 1989-12-05