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

David Hemker — 36 Patents

Lam Research: 35 patents #58 of 2,128Top 3%
Applied Materials: 1 patents #4,780 of 7,310Top 70%
San Jose, CA: #1,602 of 32,062 inventorsTop 5%
California: #13,267 of 386,348 inventorsTop 4%
Overall (All Time): #94,220 of 4,157,543Top 3%
36 Patents All Time

Issued Patents All Time

Showing 26–36 of 36 patents

Patent #TitleCo-InventorsDate
6894491 Method and apparatus for metrological process control implementing complementary sensors Yehiel Gotkis, Rodney Kistler, Aleksander Owczarz, Nicolas Bright 2005-05-17
6859765 Method and apparatus for slope to threshold conversion for process state monitoring and endpoint detection Yehiel Gotkis, Vladimir Katz, Rodney Kistler, Nicolas Bright 2005-02-22
6821899 System, method and apparatus for improved local dual-damascene planarization Shrikant Lohokare, Andrew D. Bailey, III, Joel M. Cook 2004-11-23
6808590 Method and apparatus of arrayed sensors for metrological control Yehiel Gotkis, Rodney Kistler, Aleksander Owczarz, Nicolas Bright 2004-10-26
6759336 Methods for reducing contamination of semiconductor substrates Robert Chebi 2004-07-06
6736720 Apparatus and methods for controlling wafer temperature in chemical mechanical polishing Nicolas Bright 2004-05-18
6716303 Vacuum plasma processor having a chamber with electrodes and a coil for plasma excitation and method of operating same Tuqiang Ni, Wenli Collison, Lumin Li 2004-04-06
6527911 Configurable plasma volume etch chamber Bi-Ming Yen, Tuqiang Ni, Lumin Li 2003-03-04
6528427 Methods for reducing contamination of semiconductor substrates Robert Chebi 2003-03-04
6341574 Plasma processing systems Andrew D. Bailey, III, Alan M. Schoepp, Mark Wilcoxson, Andras Kuthi 2002-01-29
5160407 Low pressure anisotropic etch process for tantalum silicide or titanium silicide layer formed over polysilicon layer deposited on silicon oxide layer on semiconductor wafer Ian Latchford, Patrica Vasquez, Brigitte Petit 1992-11-03