Inventor · disambiguated record
Charles F. Barfknecht
Also filed as: BARFKNECHT CHARLES F
24 granted patents·333 citations·filing 1973–1996
96Inventor score
Files withUNIV IOWA RES FOUND24
Top patents by PatentIndex Score
24 records- 0192US4000197AAsymmetric synthesis of phenylisopropylaminesUNIV IOWA RES FOUND·Filed 1973·Granted Dec 28, 1976·29 cites·22 claims
- 0284US5104887ATopical ophthalmic imino substituted 2-imino-3-methyl-delta4-1,3,4-thiadiazoline-5-sulfonamides carbonic anhydrase inhibitorsUNIV IOWA RES FOUND·Filed 1991·Granted Apr 14, 1992·60 cites·12 claims
- 0383US4656026AMagnetic resonance (MR) image enhancement compounds for specific areas of the brainUNIV IOWA RES FOUND·Filed 1984·Granted Apr 7, 1987·48 cites·14 claims
- 0483US4483864ANon-classical topical treatment for glaucomaUNIV IOWA RES FOUND·Filed 1983·Granted Nov 20, 1984·12 cites·4 claims
- 0580US4636515ANon-classical topical treatment for glaucomaUNIV IOWA RES FOUND·Filed 1984·Granted Jan 13, 1987·10 cites·6 claims
- 0678US4820737ALacrimal secretion stimulant (lss)UNIV IOWA RES FOUND·Filed 1988·Granted Apr 11, 1989·24 cites·12 claims
- 0771US5095026AProdrugs of carbonic anhydrase inhibitorsUNIV IOWA RES FOUND·Filed 1989·Granted Mar 10, 1992·15 cites·24 claims
- 0865US4975449ATopical treatment of glaucoma with 2-benzothiazolesulfonamide derivativeUNIV IOWA RES FOUND·Filed 1983·Granted Dec 4, 1990·5 cites·17 claims
- 0965US4975447A6-hydroxyethoxy-2-benzothiazolesulfonamide and topical treatment compositions and method for glaucomaUNIV IOWA RES FOUND·Filed 1985·Granted Dec 4, 1990·6 cites·14 claims
- 1063US5179124AAnti-inflammatory for use in external and internal eye inflammationsUNIV IOWA RES FOUND·Filed 1990·Granted Jan 12, 1993·27 cites·17 claims
- 1162US5157044AAnalogs of carbonic anhydrase inhibitors and their use as topical IOP inhibitorsUNIV IOWA RES FOUND·Filed 1990·Granted Oct 20, 1992·15 cites·7 claims
- 1259US5565434AHexose and pentose prodrugs of ethacrynic acidUNIV IOWA RES FOUND·Filed 1996·Granted Oct 15, 1996·19 cites·10 claims
- 1358US4975448A6-amino-2-benzothiazolesulfonamide and topical treatment compositions and method for glaucomaUNIV IOWA RES FOUND·Filed 1985·Granted Dec 4, 1990·4 cites·14 claims
- 1447US5322859AAntiglaucoma drug composition and methodUNIV IOWA RES FOUND·Filed 1993·Granted Jun 21, 1994·11 cites·8 claims
- 1546US5225424AMethazolamide-derived carbonic anhydrase inhibitorsUNIV IOWA RES FOUND·Filed 1992·Granted Jul 6, 1993·10 cites·8 claims
- 1645US4629738ANon-classical topical treatment for glaucomaUNIV IOWA RES FOUND·Filed 1984·Granted Dec 16, 1986·8 cites·8 claims
- 1744US5654335ATopical use of ethyl ethacrynate for glaucoma treatmentUNIV IOWA RES FOUND·Filed 1996·Granted Aug 5, 1997·7 cites·7 claims
- 1844US5387614AUse of sigma receptor ligands as salivary gland stimulantsUNIV IOWA RES FOUND·Filed 1993·Granted Feb 7, 1995·9 cites·4 claims
- 1941US4483872ANon-classical topical treatment for glaucoma using n-substituted sulfonamidesUNIV IOWA RES FOUND·Filed 1983·Granted Nov 20, 1984·6 cites·5 claims
- 2037US5961987AOcular protein stimulantsUNIV IOWA RES FOUND·Filed 1996·Granted Oct 5, 1999·3 cites·13 claims
- 2133US5776482ATetrahydroquinoline analogues for use in glaucoma treatmentUNIV IOWA RES FOUND·Filed 1996·Granted Jul 7, 1998·1 cites·9 claims
- 2233US5382576A1-aza-1-arylcycloalkanes as topical glaucoma treatment agentsUNIV IOWA RES FOUND·Filed 1993·Granted Jan 17, 1995·2 cites·4 claims
- 2333US4968718ATopically effective, nonsteroidal drug for use in external and internal eye inflammationsUNIV IOWA RES FOUND·Filed 1988·Granted Nov 6, 1990·2 cites·17 claims
- 2428US5256698ATreatment of psychosis using cyclohexyl-phenyl-lower alkyl amine derivativesUNIV IOWA RES FOUND·Filed 1990·Granted Oct 26, 1993·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →