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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DW

David Wei — 19 Patents

Lam Research: 15 patents #191 of 2,128Top 9%
Caltech: 2 patents #1,302 of 4,321Top 35%
LSLitton Systems: 1 patents #380 of 838Top 50%
Malibu, CA: #42 of 447 inventorsTop 10%
California: #31,067 of 386,348 inventorsTop 9%
Overall (All Time): #229,345 of 4,157,543Top 6%
19 Patents All Time
David Wei has been granted 19 US patents while listed as an inventor at Lam Research. The first was granted in 1989 and the most recent in February 2011. David Wei ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list David Wei in Malibu, CA, US.

Patents per Year

Patents granted per year, 1989 to 2011Bar chart with a peak of 4 patents in 2004.peak 41989: 1 patents19892001: 1 patents2003: 1 patents20032004: 4 patents2005: 3 patents20052006: 2 patents2007: 2 patents20072008: 1 patents2009: 1 patents20092010: 1 patents2011: 2 patents2011

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7892445 Wafer electrical discharge control using argon free dechucking gas Howard Dang, Masahiro Watanabe, Sean S. Kang, Kenji Takeshita, Mayumi Block +2 more 2011-02-22 $21,304,000
7875548 Method for making semiconductor structures implementing sacrificial material Yehiel Gotkis, Rodney Kistler 2011-01-25 $9,951,000
7789991 Lag control Binet Worsham, Sean S. Kang, Vinay Pohray, Bi-Ming Yen 2010-09-07 $28,649,000
7495230 Using a polaron interaction zone as an interface to integrate a plasmon layer and a semiconductor detector Axel Scherer 2009-02-24
7425501 Semiconductor structure implementing sacrificial material and methods for making and implementing the same Yehiel Gotkis, Rodney Kistler 2008-09-16 $17,193,000
7307025 Lag control Binet Worsham, Sean S. Kang, Vinay Pohray, Bi-Ming Yen 2007-12-11 $19,607,000
7297966 Utilizing an integrated plasmon detector to measure a metal deposit roughness on a semiconductor surface Axel Scherer 2007-11-20
7018276 Air platen for leading edge and trailing edge control Anthony de la Llera, Xuyen Pham, Cangshan Xu, Tony Luong 2006-03-28 $8,081,000
6984892 Semiconductor structure implementing low-K dielectric materials and supporting stubs Yehiel Gotkis, Rodney Kistler 2006-01-10 $13,310,000
6976906 Apparatus for reducing compressed dry air usage during chemical mechanical planarization John M. Boyd, Yehiel Gotkis 2005-12-20 $9,374,000
6896586 Method and apparatus for heating polishing pad Xuyen Pham, Tuan Nguyen, Ren Zhou, Linda (Tong) Jiang, Katgenhalli Y. Ramanujam +4 more 2005-05-24 $8,033,000
6878048 CMP belt stretch compensation apparatus and methods for using the same Yehiel Gotkis, Aleksander Owzarz 2005-04-12 $18,280,000
6808442 Apparatus for removal/remaining thickness profile manipulation Yehiel Gotkis, Aleksander Owczarz, John M. Boyd, Rod Kistler 2004-10-26 $9,361,000
6761626 Air platen for leading edge and trailing edge control Anthony de la Llera, Xuyen Pham, Cangshan Xu, Tony Luong 2004-07-13 $27,917,000
6749491 CMP belt stretch compensation apparatus and methods for using the same Yehiel Gotkis, Aleksander Owzarz 2004-06-15 $7,530,000
6719874 Active retaining ring support Yehiel Gotkis, Aleksander Owczarz, Miguel Saldana, Damon Vincent Williams 2004-04-13 $35,310,000
6656024 Method and apparatus for reducing compressed dry air usage during chemical mechanical planarization John M. Boyd, Yehiel Gotkis 2003-12-02 $16,848,000
6190511 Method and apparatus for ion beam sputter deposition of thin films 2001-02-20
RE32849 Method for fabricating multi-layer optical films Anthony W. Louderback 1989-01-31