Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9281426 | Systems, devices, and/or methods for solar cells comprising a light amplification element | Hieu Dinh | 2016-03-08 |
| 6508872 | Lightfast additive molecule for inkjet ink | Sivapackia Ganapathiappan | 2003-01-21 |
| 6465142 | Low-temperature cure polyvinylbutyral as a photoconducter binder | Sivapackia Ganapathiappan | 2002-10-15 |
| 6417249 | Ink-jet printing ink compositions having superior smear-fastness | Sivapackia Ganapathiappan | 2002-07-09 |
| 6248161 | Preparation of permanent color inks from water-soluble colorants using specific phosphonium salts | Raymond Adamic, Sivapackia Ganapathiappan | 2001-06-19 |
| 6248805 | Ink-jet printing ink compositions having magnetic properties and specific core/shell binder | Sivapackia Ganapathiappan | 2001-06-19 |
| 6136486 | Cross-linked polyvinyl butyral binder for organic photoconductor | — | 2000-10-24 |
| 6057384 | Latex polymer blends for improving the permanence of ink-jet inks | Sivapackia Ganapathiappan | 2000-05-02 |
| 6027844 | Polymeric binders having saturated ring for improved performance of single layer positive organic photoconductor | Sivapackia Ganapathiappan | 2000-02-22 |
| 5990202 | Dual encapsulation technique for preparing ink-jets inks | Sivapackia Ganapathiappan | 1999-11-23 |
| 5972552 | Photoconductor comprising a complex between metal oxide phthalocyanine compounds and hydroxy or amine compounds | Sivapackia Ganapathiappan | 1999-10-26 |
| 5858592 | Terpolymers useful as charge injection barrier materials for photoreceptor | Sivapackia Ganapathiappan | 1999-01-12 |
| 5834564 | Photoconductor coating having perfluoro copolymer and composition for making same | Sivapackia Ganapathiappan | 1998-11-10 |
| 5821019 | Composite organic photoconductor having particulate charge transport layer | — | 1998-10-13 |
| 5750300 | Photoconductor comprising a complex between metal oxide phthalocyanine compounds and hydroxy compounds | — | 1998-05-12 |
| 5666615 | Minimal liquid carrier transfer in an image formation process | — | 1997-09-09 |
| 5631114 | Derivatives of diiminoquinones useful as electron transport agents in electrophotographic elements | Sivapackia Ganapathiappan | 1997-05-20 |
| 5608507 | Direct transfer of liquid toner image from photoconductor drum to image receiver | — | 1997-03-04 |
| 5558965 | Diiminoquinilidines as electron transport agents in electrophotographic elements | Sivapackia Ganapathiappan | 1996-09-24 |
| 5556730 | Charge injection barrier for positive charging organic photoconductor | — | 1996-09-17 |
| 5529869 | Reusable positive-charging organic photoconductor containing phthalocyanine pigment and cross-linking binder | — | 1996-06-25 |
| 5518853 | Diffusion coating process of making inverse composite dual-layer organic photoconductor | Sivapackia Ganapathiappan, Tan Ha | 1996-05-21 |
| 5516610 | Reusable inverse composite dual-layer organic photoconductor using specific polymers | Sivapackia Ganapathiappan | 1996-05-14 |
| 5506082 | Cross-linked polyvinyl butyral binder for organic photoconductor | — | 1996-04-09 |
| 5476604 | Charge injection barrier for positive charging organic photoconductor | — | 1995-12-19 |