Inventor · disambiguated record
Richard F. Hammen
Also filed as: HAMMEN RICHARD F · HAMMEN RICHARD FREDERICK
7 granted patents·174 citations·filing 1991–2004
87Inventor score
Top patents by PatentIndex Score
7 records- 0187US5240602AChromatographic materialCHROMATOCHEM INC·Filed 1991·Granted Aug 31, 1993·91 cites·13 claims
- 0273US7201844B1Composite matrices with interstital polymer networksHAMMEN CORP·Filed 2002·Granted Apr 10, 2007·16 cites·21 claims
- 0372US6946070B2Composite matrices with interstitial polymer networksHAMMEN RICHARD F·Filed 2001·Granted Sep 20, 2005·18 cites·12 claims
- 0466US6689715B1Tethered polymer ligandsHAMMEN CORP·Filed 2001·Granted Feb 10, 2004·8 cites·24 claims
- 0561US6916536B1Composites incorporating covalently bonded interstitial polymer resinsFiled 2002·Granted Jul 12, 2005·14 cites·19 claims
- 0660US6251278B1Process for separating a substance from a mixtureCHROMATOCHEM INC·Filed 1999·Granted Jun 26, 2001·24 cites·6 claims
- 0756US7220703B2Tethered polymer ligandsHAMMEN CORP·Filed 2004·Granted May 22, 2007·3 cites·26 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →