Issued Patents All Time
Showing 151–168 of 168 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871634 | Electrophotographic elements using hydroxy functionalized arylamine compounds | William W. Limburg, Dale S. Renfer, Richard L. Schank, Beng S. Ong | 1989-10-03 |
| 4818650 | Arylamine containing polyhydroxy ether resins and system utilizing arylamine containing polyhydroxyl ether resins | William W. Limburg, Dale S. Renfer, Leon A. Teuscher | 1989-04-04 |
| 4806444 | Arylamine polymers and systems utilizing arylamine polymers | John W. Spiewak, Dale S. Renfer, William W. Limburg | 1989-02-21 |
| 4806443 | Polyarylamine compounds and systems utilizing polyarylamine compounds | John W. Spiewak, Dale S. Renfer, William W. Limburg | 1989-02-21 |
| 4764625 | Process for preparing arylamines | S. Richard Turner, Dale S. Renfer | 1988-08-16 |
| 4714779 | Aromatic aryl amine polymers | S. Richard Turner | 1987-12-22 |
| 4665231 | Process for preparing squaraines | William W. Limburg | 1987-05-12 |
| 4606986 | Electrophotographic elements containing unsymmetrical squaraines | William W. Limburg | 1986-08-19 |
| 4523035 | Process for synthesizing squaraine compositions | — | 1985-06-11 |
| 4521621 | Novel squarine systems | William W. Limburg | 1985-06-04 |
| 4486520 | Photoconductive devices containing novel squaraine compositions | — | 1984-12-04 |
| 4457994 | Photoresponsive device containing arylmethanes | Damodar M. Pai | 1984-07-03 |
| 4346158 | Imaging system with a diamine charge transport material in a polycarbonate resin | Damodar M. Pai, Milan Stolka | 1982-08-24 |
| 4306008 | Imaging system with a diamine charge transport material in a polycarbonate resin | Damodar M. Pai, James M. Pearson, Milan Stolka | 1981-12-15 |
| 4299897 | Aromatic amino charge transport layer in electrophotography | Milan Stolka, Damodar M. Pai, Dale S. Renfer, James M. Pearson | 1981-11-10 |
| 4273846 | Imaging member having a charge transport layer of a terphenyl diamine and a polycarbonate resin | Damodar M. Pai, S. Richard Turner, Dale S. Renfer, Milan Stolka | 1981-06-16 |
| 4265990 | Imaging system with a diamine charge transport material in a polycarbonate resin | Milan Stolka, Damodar M. Pai | 1981-05-05 |
| 4233384 | Imaging system using novel charge transport layer | S. Richard Turner, Damodar M. Pai | 1980-11-11 |