Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961987 | Ocular protein stimulants | Charles F. Barfknecht | 1999-10-05 |
| 5776482 | Tetrahydroquinoline analogues for use in glaucoma treatment | Charles F. Barfknecht | 1998-07-07 |
| 5654335 | Topical use of ethyl ethacrynate for glaucoma treatment | Charles F. Barfknecht | 1997-08-05 |
| 5565434 | Hexose and pentose prodrugs of ethacrynic acid | Charles F. Barfknecht | 1996-10-15 |
| 5387614 | Use of sigma receptor ligands as salivary gland stimulants | Charles F. Barfknecht | 1995-02-07 |
| 5382576 | 1-aza-1-arylcycloalkanes as topical glaucoma treatment agents | Charles F. Barfknecht | 1995-01-17 |
| 5322859 | Antiglaucoma drug composition and method | Charles F. Barfknecht | 1994-06-21 |
| 5256698 | Treatment of psychosis using cyclohexyl-phenyl-lower alkyl amine derivatives | Charles F. Barfknecht, Roger E. Newton | 1993-10-26 |
| 5225424 | Methazolamide-derived carbonic anhydrase inhibitors | Charles F. Barfknecht | 1993-07-06 |
| 5179124 | Anti-inflammatory for use in external and internal eye inflammations | Charles F. Barfknecht | 1993-01-12 |
| 5157044 | Analogs of carbonic anhydrase inhibitors and their use as topical IOP inhibitors | Charles F. Barfknecht | 1992-10-20 |
| 5104887 | Topical ophthalmic imino substituted 2-imino-3-methyl-delta4-1,3,4-thiadiazoline-5-sulfonamides carbonic anhydrase inhibitors | Charles F. Barfknecht | 1992-04-14 |
| 5095026 | Prodrugs of carbonic anhydrase inhibitors | Charles F. Barfknecht | 1992-03-10 |
| 4975448 | 6-amino-2-benzothiazolesulfonamide and topical treatment compositions and method for glaucoma | Charles F. Barfknecht | 1990-12-04 |
| 4975447 | 6-hydroxyethoxy-2-benzothiazolesulfonamide and topical treatment compositions and method for glaucoma | Charles F. Barfknecht | 1990-12-04 |
| 4975449 | Topical treatment of glaucoma with 2-benzothiazolesulfonamide derivative | Charles F. Barfknecht | 1990-12-04 |
| 4968718 | Topically effective, nonsteroidal drug for use in external and internal eye inflammations | Charles F. Barfknecht | 1990-11-06 |
| 4879294 | Opthalmic composition | — | 1989-11-07 |
| 4879304 | Ophthalmic compositions and process for preparing | — | 1989-11-07 |
| 4866083 | 2-t-butyl-3 alkyl-5-(m-hydroxyphenyl)-1,3-oxazolidines having mydriatic effect | Du-Shieng Chien | 1989-09-12 |
| 4820737 | Lacrimal secretion stimulant (lss) | Charles F. Barfknecht | 1989-04-11 |
| 4738851 | Controlled release ophthalmic gel formulation | John L. Lach | 1988-04-19 |
| 4705798 | Phenylephrine prodrug useful as mydriatic agent | Du-Shieng Chien | 1987-11-10 |
| 4636515 | Non-classical topical treatment for glaucoma | Charles F. Barfknecht | 1987-01-13 |
| 4629738 | Non-classical topical treatment for glaucoma | Charles F. Barfknecht | 1986-12-16 |