Inventor · disambiguated record
Donald W. H. Penhale
Also filed as: PENHALE DONALD W · PENHALE DONALD W H
10 granted patents·867 citations·filing 1980–1989
93Inventor score
Top patents by PatentIndex Score
10 records- 0198US4946931APolymers containing carboxy-ortho ester and ortho ester linkagesPHARMACEUTICAL DELIVERY SYSTEM·Filed 1989·Granted Aug 7, 1990·162 cites·18 claims
- 0297US4304767APolymers of di- (and higher functionality) ketene acetals and polyolsSTANFORD RES INST INT·Filed 1980·Granted Dec 8, 1981·307 cites·30 claims
- 0396US4957998APolymers containing acetal, carboxy-acetal, ortho ester and carboxyortho ester linkagesPHARMACEUTICAL DELIVERY SYSTEM·Filed 1988·Granted Sep 18, 1990·85 cites·39 claims
- 0496US4764364AMethod of preparing bioerodible polymers having pH sensitivity in the acid range and resulting productSTANFORD RES INST INT·Filed 1986·Granted Aug 16, 1988·83 cites·23 claims
- 0595US4513143APreparation of ketene acetalsSTANFORD RES INST INT·Filed 1982·Granted Apr 23, 1985·47 cites·8 claims
- 0693US4855132AMethod of preparing bioerodible polymers having pH sensitivity in the acid range and resulting productSTANFORD RES INST INT·Filed 1988·Granted Aug 8, 1989·60 cites·12 claims
- 0791US4713441APolyacetal hydrogels formed from divinyl ethers and polyolsSANDOZ PHARMACEUTICALS CORP·Filed 1986·Granted Dec 15, 1987·47 cites·9 claims
- 0887US4898928APolyacetal and polyketal hydrogels formed from acetals or ketals and polyolsSANDOZ PHARMACEUTICALS CORP·Filed 1988·Granted Feb 6, 1990·34 cites·17 claims
- 0980US5013821AOrtho and thio-ortho ester polymerPHARMACEUTICAL DELIVERY SYSTEM·Filed 1989·Granted May 7, 1991·24 cites·29 claims
- 1073US4801457APolyacetal hydrogels formed from divinyl ethers and polyolsSANDOZ PHARMACEUTICALS CORP·Filed 1987·Granted Jan 31, 1989·18 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Donald W. H. Penhale files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →