Inventor · disambiguated record
Francis M. Sprinkel
Also filed as: SPRINKEL FRANCIS M · SPRINKEL JR FRANCIS M
11 granted patents·5,925 citations·filing 1986–2005
95Inventor score
Top patents by PatentIndex Score
11 records- 0198US5878752AMethod and apparatus for using, cleaning, and maintaining electrical heat sources and lighters useful in smoking systems and other apparatusesPHILIP MORRIS INC·Filed 1996·Granted Mar 9, 1999·1k cites·69 claims
- 0298US5666977AElectrical smoking article using liquid tobacco flavor medium delivery systemPHILIP MORRIS INC·Filed 1994·Granted Sep 16, 1997·1.2k cites·27 claims
- 0398US5224498AElectrically-powered heating elementPHILIP MORRIS INC·Filed 1991·Granted Jul 6, 1993·825 cites·29 claims
- 0498US5144962AFlavor-delivery articlePHILIP MORRIS INC·Filed 1989·Granted Sep 8, 1992·1.3k cites·146 claims
- 0598US5093894AElectrically-powered linear heating elementPHILIP MORRIS INC·Filed 1989·Granted Mar 3, 1992·875 cites·29 claims
- 0693US4687008AFilter cigarettePHILIP MORRIS INC·Filed 1986·Granted Aug 18, 1987·178 cites·35 claims
- 0788US4677995AFilter cigarettePHILIP MORRIS INC·Filed 1986·Granted Jul 7, 1987·142 cites·12 claims
- 0886US4717017APackage with means for releasing aromatic substance on openingPHILIP MORRIS INC·Filed 1987·Granted Jan 5, 1988·162 cites·21 claims
- 0985US4848375AFilter cigarettePHILIP MORRIS INC·Filed 1987·Granted Jul 18, 1989·106 cites·34 claims
- 1083US4699158AAdjustable filter cigarette with tactile indicatorPHILIP MORRIS INC·Filed 1986·Granted Oct 13, 1987·81 cites·7 claims
- 1182US7481205B2High frequency vaporized fuel injectorPHILIP MORRIS USA INC·Filed 2005·Granted Jan 27, 2009·15 cites·18 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →