Inventor · Framingham, MA, US

Prabhat Kumar

61Patents
15h-index
71Co-inventors
87Inventor score

Filing activity: Nov 25, 1983 → Apr 14, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US5242481A Method of making powders and products of tantalum and niobium Chemistry; Metallurgy 74 Expired
US5245514A Extruded capacitor electrode and method of making the same Performing Operations; Transporting 51 Expired
US6521173B2 Low oxygen refractory metal powder for powder metallurgy Performing Operations; Transporting 50 Expired
US5171379A Tantalum base alloys Chemistry; Metallurgy 44 Expired
US5580516A Powders and products of tantalum, niobium and their alloys Chemistry; Metallurgy 42 Expired
US6261337A Low oxygen refractory metal powder for powder metallurgy Performing Operations; Transporting 39 Expired
US9040409B2 Methods of forming solar cells and solar cell modules Emerging Cross-Sectional Technologies 34 Active
US9076860B1 Residue removal from singulated die sidewall Electricity 31 Active
US7910051B2 Low-energy method for fabrication of large-area sputtering targets Emerging Cross-Sectional Technologies 30 Active
US9130057B1 Hybrid dicing process using a blade and laser Performing Operations; Transporting 29 Active
US7651658B2 Refractory metal and alloy refining by laser forming and melting Chemistry; Metallurgy 22 Expired
US8197894B2 Methods of forming sputtering targets Electricity 19 Active
US8043655B2 Low-energy method of manufacturing bulk metallic structures with submicron grain sizes Emerging Cross-Sectional Technologies 19 Active
US4464206A Wrought P/M processing for prealloyed powder Performing Operations; Transporting 16 Expired
US9142459B1 Wafer dicing using hybrid laser scribing and plasma etch approach with mask application by vacuum lamination Electricity 15 Active
US7837929B2 Methods of making molybdenum titanium sputtering plates and targets Performing Operations; Transporting 13 Expired
US9580773B2 Niobium based alloy that is resistant to aqueous corrosion Chemistry; Metallurgy 13 Active
US8491959B2 Methods of rejuvenating sputtering targets Electricity 11 Active
US8883250B2 Methods of rejuvenating sputtering targets Electricity 10 Active
US8088232B2 Molybdenum tubular sputtering targets with uniform grain size and texture Performing Operations; Transporting 9 Active
US6912113B2 Thin film capacitor using conductive polymers Emerging Cross-Sectional Technologies 9 Expired
US6731495B2 Thin film capacitor using conductive polymers Emerging Cross-Sectional Technologies 8 Expired
US7794554B2 Rejuvenation of refractory metal products Emerging Cross-Sectional Technologies 7 Expired
US9601375B2 UV-cure pre-treatment of carrier film for wafer dicing using hybrid laser scribing and plasma etch approach Electricity 7 Active
US4561892A Silicon-rich alloy coatings Emerging Cross-Sectional Technologies 6 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.