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Home › Borgwarner › William D. Sproul
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William D. Sproul — 12 Patents

Northwestern University: 5 patents #278 of 3,846Top 8%
BOBorgwarner: 5 patents #288 of 1,733Top 20%
AIAdvanced Energy Industries: 1 patents #97 of 173Top 60%
Kla-Tencor: 1 patents #1,890 of 2,049Top 95%
Palatine, IL: #146 of 1,176 inventorsTop 15%
Illinois: #7,339 of 84,256 inventorsTop 9%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
William D. Sproul has been granted 12 US patents while listed as an inventor at Borgwarner. The first was granted in 1983 and the most recent in October 2013. William D. Sproul ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list William D. Sproul in Palatine, IL, US.

Patents per Year

Patents granted per year, 1983 to 2013Bar chart with a peak of 4 patents in 1998.peak 41983: 1 patents19831984: 2 patents19841986: 1 patents19861987: 1 patents19871998: 4 patents19981999: 1 patents19992005: 1 patents20052013: 1 patents2013

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8545669 Sensor array for measuring plasma characteristics in plasma processing environments Leonard Mahoney, Carl W. Almgren, Gregory A. Roche, William W. Saylor, Hendrik Walde 2013-10-01 $25,331,000
6902646 Sensor array for measuring plasma characteristics in plasma processing environments Leonard Mahoney, Carl W. Almgren, Gregory A. Roche, William W. Saylor, Hendrik Walde 2005-06-07 $3,526,000
5942089 Method for sputtering compounds on a substrate Michael Evans Graham 1999-08-24
5789071 Multilayer oxide coatings Scott A. Barnett, Anthony Lefkow, Ming-Show Wong, Phillip Yashar 1998-08-04
5783295 Polycrystalline supperlattice coated substrate and method/apparatus for making same Scott A. Barnett, Ming-Show Wong, Xi Chu 1998-07-21
5776615 Superhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride, carbide and carbonitride Ming-Show Wong, Dong Li, Yip-Wah Chung, Xi Chu, Scott A. Barnett 1998-07-07
5725913 Superhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride carbide and carbonitride Ming-Show Wong, Dong Li, Yin-Wah Chung, Xi Chu, Scott A. Barnett 1998-03-10
4670172 Process and kit for working metals Roger K. Nibert 1987-06-02 $35,180,000
4608243 High hardness hafnium nitride — 1986-08-26 $21,378,000
4428811 Rapid rate reactive sputtering of a group IVb metal James R. Tomashek 1984-01-31 $7,145,000
4428812 Rapid rate reactive sputtering of metallic compounds — 1984-01-31 $7,145,000
4388159 Surface preparation of aluminum articles Kostas F. Dockus 1983-06-14 $15,759,000

Frequent Collaborators

Ming-Show Wong4 shared
Scott A. Barnett4 shared
Xi Chu3 shared
Dong Li2 shared
Carl W. Almgren2 shared
William W. Saylor2 shared

Nearby-Ranked Inventors

John Patrick Hickey, III12
Gregory Lutter12
Josselin Xavier COUPARD12
Xuan Li12
Nandana Mihindukulasooriya12
Keiichi Matsuda12
Robert Imig12
Peter Mage12
Sze Ping Ching12