Ralph E. Roper — 25 Patents at NVIDIA

Ralph E. Roper has been granted 25 US patents while listed as an inventor at NVIDIA. The first was granted in 1980 and the most recent in July 2015. Ralph E. Roper ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Ralph E. Roper in Indianapolis, IN, US.

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
9073008	Use of ferrous sulfide suspension for the removal of mercury from flue gases	Thomas P. McCullough, Gary Joel Meyer, Anthony J. Kriech	2015-07-07
9034285	Use of ferrous sulfide suspension for the removal of mercury from flue gases	Thomas P. McCullough, Gary Joel Meyer, Anthony J. Kriech	2015-05-19
7938766	Calcium-sodium polysulfide chemical reagent and production methods	—	2011-05-10
7767188	Calcium-sodium polysulfide chemical reagent and production methods	—	2010-08-03
7534413	Calcium-sodium polysulfide chemical reagent and production methods	—	2009-05-19
7144362	Method for chemically stabilizing waste materials containing multivalent oxyanions	—	2006-12-05
6622831	Soft-start, soft-return gas spring	—	2003-09-23
6390457	Soft-start, soft-return gas spring	—	2002-05-21
6068245	Apparatus and method for cushioning the action of draw dies operating in a stamping press and the like	—	2000-05-30
5890387	Apparatus and method for forming and hydropiercing a tubular frame member	Gary A. Webb, Douglas W. Tyger	1999-04-06
5865054	Apparatus and method for forming a tubular frame member	—	1999-02-02
5802898	Apparatus for forming a tubular frame member	—	1998-09-08
5533372	Controlled material flow hydroforming	Gary A. Webb	1996-07-09
5499520	Apparatus for forming a tubular frame member	—	1996-03-19
5481892	Apparatus and method for forming a tubular member	Gary A. Webb, Douglas W. Tyger, Donald F. Lowen	1996-01-09
5372026	Apparatus and method for hydroforming sheet metal	—	1994-12-13	$2,842,000
5372027	Controlled material flow hydroforming	Gary A. Webb	1994-12-13	$2,842,000
5353618	Apparatus and method for forming a tubular frame member	Gary A. Webb, Douglas W. Tyger	1994-10-11	$6,052,000
5239852	Apparatus and method for forming a tubular frame member	—	1993-08-31	$6,949,000
5157969	Apparatus and method for hydroforming sheet metal	—	1992-10-27	$7,252,000
4738695	Gas removal system	Ivan H. Carr, James W. Hayman	1988-04-19
4576030	Stretch form die	—	1986-03-18
4536931	Bearing burnishing method and apparatus	—	1985-08-27
4295357	Apparatus for making metal outers and inners	—	1981-10-20	$1,991,000
4238949	Process and apparatus for making metal outers and inners	—	1980-12-16	$757,000

Ralph E. Roper — 25 Patents

Issued Patents All Time

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