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

David Schaefer — 19 Patents

Lam Research: 15 patents #191 of 2,128Top 9%
FTFalcon'S Treehouse: 1 patents #3 of 6Top 50%
KEKnowles Electronics: 1 patents #176 of 325Top 55%
Fremont, CA: #880 of 9,298 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 Schaefer has been granted 19 US patents while listed as an inventor at Lam Research. The first was granted in 2007 and the most recent in July 2025. David Schaefer ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list David Schaefer in Fremont, CA, US.

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12368025 Edge seal for lower electrode assembly Ambarish Chhatre, Keith Gaff, Sung Je Kim, Brooke Mesler Lai 2025-07-22
11992779 Networked games, rides and attractions Cecil D. Magpuri, Michael John Wallace, Syed Saham Ali, David Consolo 2024-05-28
11794121 Theme or amusement park attraction using high frame rate active shutter technology Cecil D. Magpuri, Syed Saham Ali, David Consolo 2023-10-24
11781650 Edge seal for lower electrode assembly Ambarish Chhatre, Keith Gaff, Sung Je Kim, Brooke Mesler Lai 2023-10-10 $246,209,000
10857467 Network gaming ride attraction Cecil D. Magpuri, Michael John Wallace, Syed Saham Ali, David Consolo 2020-12-08
10804081 Edge ring dimensioned to extend lifetime of elastomer seal in a plasma processing chamber Ambarish Chhatre, Keith Gaff 2020-10-13 $92,724,000
10109460 Universal non-invasive chamber impedance measurement system and associated methods Chin-Yi Liu, Dan Marohl 2018-10-23 $28,319,000
9947512 Window and mounting arrangement for twist-and-lock gas injector assembly of inductively coupled plasma chamber Rish Chhatre 2018-04-17 $35,271,000
9869392 Edge seal for lower electrode assembly Ambarish Chhatre, Keith Gaff, Sung Lee, Brooke Mesler Lai 2018-01-16 $36,071,000
9859142 Edge seal for lower electrode assembly Ambarish Chhatre, Keith Gaff, Sung Lee 2018-01-02 $30,901,000
9790582 Long lifetime thermal spray coating for etching or deposition chamber application Chin-Yi Liu, Russell Ormond, Nash W. ANDERSON 2017-10-17 $27,322,000
9583377 Installation fixture for elastomer bands Rish Chhatre 2017-02-28 $17,327,000
9355884 Installation fixture for elastomer bands and methods of using the same Rish Chhatre, Sung Lee, Dan Haber 2016-05-31 $11,278,000
9054148 Method for performing hot water seal on electrostatic chuck Hong Shih, Tuochuan Huang, Ambarish Chhatre, John Daugherty, MingHang Wu +1 more 2015-06-09 $16,694,000
8844106 Installation fixture for elastomer bands and methods of using the same Rish Chhatre, Sung Lee, Dan Haber 2014-09-30 $8,350,000
7622051 Methods for critical dimension control during plasma etching Gowri Kota 2009-11-24 $43,132,000
7479457 Gas mixture for removing photoresist and post etch residue from low-k dielectric material and method of use thereof Cristian Paduraru, Alan J. Jensen, Robert Charatan, Tom Choi 2009-01-20 $5,668,000
7477756 Isolating deep canal fitting earphone Timothy K. Wickstrom, William J. Ballad 2009-01-13
7205226 Sacrificial layer for protection during trench etch Robert Charatan 2007-04-17 $10,156,000