Inventor · disambiguated record
William D. Sproul
Also filed as: SPROUL WILLIAM D
12 granted patents·767 citations·filing 1981–2005
94Inventor score
Top patents by PatentIndex Score
12 records- 0196US6902646B2Sensor array for measuring plasma characteristics in plasma processing environmentsADVANCED ENERGY IND INC·Filed 2003·Granted Jun 7, 2005·170 cites·18 claims
- 0294US5776615ASuperhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride, carbide and carbonitrideUNIV NORTHWESTERN·Filed 1995·Granted Jul 7, 1998·150 cites·11 claims
- 0394US4428811ARapid rate reactive sputtering of a group IVb metalBORG WARNER·Filed 1983·Granted Jan 31, 1984·57 cites·16 claims
- 0493US5942089AMethod for sputtering compounds on a substrateUNIV NORTHWESTERN·Filed 1996·Granted Aug 24, 1999·140 cites·13 claims
- 0589US8545669B2Sensor array for measuring plasma characteristics in plasma processing environmentsMAHONEY LEONARD J·Filed 2005·Granted Oct 1, 2013·24 cites·26 claims
- 0689US4388159ASurface preparation of aluminum articlesBORG WARNER·Filed 1981·Granted Jun 14, 1983·46 cites·2 claims
- 0778US5789071AMultilayer oxide coatingsUNIV NORTHWESTERN·Filed 1996·Granted Aug 4, 1998·52 cites·12 claims
- 0877US4428812ARapid rate reactive sputtering of metallic compoundsBORG WARNER·Filed 1983·Granted Jan 31, 1984·29 cites·9 claims
- 0971US5783295APolycrystalline supperlattice coated substrate and method/apparatus for making sameUNIV NORTHWESTERN·Filed 1996·Granted Jul 21, 1998·36 cites·9 claims
- 1071US5725913ASuperhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride carbide and carbonitrideUNIV NORTHWESTERN·Filed 1996·Granted Mar 10, 1998·32 cites·12 claims
- 1171US4670172AProcess and kit for working metalsBORG WARNER·Filed 1985·Granted Jun 2, 1987·23 cites·17 claims
- 1251US4608243AHigh hardness hafnium nitrideBORG WARNER·Filed 1985·Granted Aug 26, 1986·8 cites·8 claims
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