Inventor · disambiguated record
William Drefko
Also filed as: DREFKO WILLIAM · DREFKO WILLIAM J
6 granted patents·1 pending application·168 citations·filing 2001–2005
78Inventor score
Files withISP INVESTMENTS INC7
Top patents by PatentIndex Score
7 records- 0195US6465014B1pH-dependent sustained release, drug-delivery compositionISP INVESTMENTS INC·Filed 2001·Granted Oct 15, 2002·162 cites·9 claims
- 0282US7534381B2Process and apparatus for forming agglomerates of a powder composition of an active and binderISP INVESTMENTS INC·Filed 2005·Granted May 19, 2009·4 cites·17 claims
- 0350US6620426B2Tablet coating compositionISP INVESTMENTS INC·Filed 2001·Granted Sep 16, 2003·0 cites·6 claims
- 0449US6620900B2Proliferous copolymer of vinyl pyrrolidone and vinyl acetateISP INVESTMENTS INC·Filed 2002·Granted Sep 16, 2003·1 cites·8 claims
- 0547US6806334B2Proliferous copolymer of vinyl pyrrolidone and vinyl acetateISP INVESTMENTS INC·Filed 2003·Granted Oct 19, 2004·1 cites·5 claims
- 0647US2004001884A1Pharmaceutical tablet coating compositionISP INVESTMENTS INC·Filed 2002·Application pending·0 cites
- 0746US7704528B2Binder composition and method for processing poorly compressible drugs into tablets of predetermined hardness and friabilityISP INVESTMENTS INC·Filed 2003·Granted Apr 27, 2010·0 cites·17 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →