Issued Patents All Time
Showing 51–71 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840864 | New electrostatographic toners and developers containing new charge-control agents | Douglas E. Bugner, Lawrence P. DeMejo, Robert A. Guistina, James H. Anderson | 1989-06-20 |
| 4837394 | electrostatographic toner particle comprising a polyester containing a covalently bound quaternary phosphonium salt | Lawrence P. DeMejo, Thomas A. Jadwin, John C. Wilson | 1989-06-06 |
| 4837393 | Electrostatographic toner particle comprising a polyester containing a covalently bound quaternary phosphonium salt | Lawrence P. DeMejo, John C. Wilson | 1989-06-06 |
| 4834920 | New quaternary ammonium salts | Douglas E. Bugner, Lawrence P. DeMejo, Robert A. Guistina, James H. Anderson | 1989-05-30 |
| 4834921 | Quaternary ammonium salts | Douglas E. Eugner, Lawrence P. DeMejo, Robert A. Guistina | 1989-05-30 |
| 4812381 | Electrostatographic toners and developers containing new charge-control agents | Douglas E. Bugner, Lawrence P. DeMejo, Robert A. Guistina | 1989-03-14 |
| 4812382 | Electrostatographic toners and developers containing new charge-control agents | Douglas E. Bugner | 1989-03-14 |
| 4812378 | Electrostatographic toners and developers containing charge-control agents | Douglas E. Bugner, Lawrence P. DeMejo, Robert A. Guistina, James H. Anderson | 1989-03-14 |
| 4812380 | Electrostatographic toners and developers containing new charge-control agents | Douglas E. Bugner | 1989-03-14 |
| 4806283 | Quaternary ammonium salts | Douglas E. Bugner | 1989-02-21 |
| 4806284 | New quaternary ammonium salts | Douglas E. Bugner, Lawrence P. De Mejo, Robert A. Guistina, James H. Anderson | 1989-02-21 |
| 4803017 | Quaternary ammonium salts | Douglas E. Bugner | 1989-02-07 |
| 4789614 | Toners and developers containing benzyldimethylalkylammonium charge-control agents | Douglas E. Bugner | 1988-12-06 |
| 4758491 | Dry toner and developer composition | Paul Alan Hartley, Joseph A. Pavlisko | 1988-07-19 |
| 4708923 | Crosslinked vinyl polymer particles and electrographic elements and liquid developers containing such particles | Drewfus Y. Myers, Jr., Glenn T. Pearce, Domenic Santilli, Chandrasekha Sreekumar, Martin A. Berwick +2 more | 1987-11-24 |
| 4701387 | Plural-stage liquid development of electrostatic charge patterns | Domenic Santilli, Yee S. Ng | 1987-10-20 |
| 4681828 | Method of chemical electrographic image amplification using chemically active toner particles | Joseph W. Manthey, John W. May, Chandra Sreekumar | 1987-07-21 |
| 4547449 | Liquid electrographic developers containing quaternary ammonium charge-control polymers having acidic monomers | Louis J. Sorriero, Chandra Sreekumar | 1985-10-15 |
| 4507377 | Self-fixing liquid electrographic developers | — | 1985-03-26 |
| 4480022 | Method for forming a self-fixed image on a nonporous surface at ambient temperature | Stewart H. Merrill | 1984-10-30 |
| 4307165 | Plural imaging component microcellular arrays, processes for their fabrication, and electrographic compositions | Richard N. Blazey, Domenic Santilli, Michael Mosehauer | 1981-12-22 |