Stephen A. Rishton has been granted 10 US patents while listed as an inventor at Etec Systems . The first was granted in 1991 and the most recent in March 2005. Stephen A. Rishton ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Stephen A. Rishton in Yorktown Heights, NY, US.
Patents per Year Patents granted per year, 1991 to 2005 Bar chart with a peak of 4 patents in 2001. peak 4 1991: 1 patents 1991 1999: 1 patents 1999 2000: 1 patents 2000 2001: 4 patents 2001 2003: 1 patents 2003 2004: 1 patents 2004 2005: 1 patents 2005
Issued Patents All Time
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Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6870232 Scalable MOS field effect transistor Kevin K. Chan , Jack O. Chu , Khalid EzzEldin Ismail , Katherine L. Saenger 2005-03-22
$9,449,000
6828570 Technique for writing with a raster scanned beam Lee H. Veneklasen , Stacey Winter , Volker Boegli , Huei Kao 2004-12-07
$16,454,000
6556702 Method and apparatus that determines charged particle beam shape codes Weidong Wang , Volker Boegli , Ulrich Hofmann 2003-04-29
$17,791,000
6281508 Precision alignment and assembly of microlenses and microcolumns Kim Y. Lee , Ho Seob Kim , Tai-Hon Philip Chang 2001-08-28
6262429 Raster shaped beam, electron beam exposure strategy using a two dimensional multipixel flash field Jeffery K. Varner , Allan L. Sagle , Lee H. Veneklasen , Weidong Wang 2001-07-17
6259106 Apparatus and method for controlling a beam shape Volker Boegli , Lee H. Veneklasen 2001-07-10
6195214 Microcolumn assembly using laser spot welding Lawrence P. Muray , Kim Y. Lee , Ho Seob Kim , Tai-Hon Philip Chang 2001-02-27
6096590 Scalable MOS field effect transistor Kevin K. Chan , Jack O. Chu , Khalid EzzEldin Ismail , Katherine L. Saenger 2000-08-01
$27,147,000
5955759 Reduced parasitic resistance and capacitance field effect transistor Khalid EzzEldin Ismail , Katherine L. Saenger 1999-09-21
$27,467,000
5051598 Method for correcting proximity effects in electron beam lithography Christopher J. Ashton , Porter Dean Gerber , Dieter Kern , Walter W. Molzen, Jr. , Michael Rosenfield +1 more 1991-09-24
$15,462,000
