Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10988621 | Pigment for paper and coatings | Ashok Khokhani, Ismail Yildirim, Sharad Mathur, Anthony N. Lake | 2021-04-27 |
| 10513617 | Enhanced performance of mineral based aqueous barrier coatings | Rajan R. Iyer, Michael Sigman, Sharad Mathur, Kenneth W. Folmar, John D. Serafano +3 more | 2019-12-24 |
| 10253186 | Pigment for paper and coatings | Ashok Khokhani, Ismail Yildirim, Sharad Mathur, Anthony N. Lake | 2019-04-09 |
| 9803088 | Enhanced performance of mineral based aqueous barrier coatings | Rajan R. Iyer, Michael Sigman, Sharad Mathur, Kenneth W. Folmar, John D. Serafano +3 more | 2017-10-31 |
| 7811375 | Pigment | Mats F. Idvall, Andrew R. Negele, Ivan Petrovic, Scott Hedrick | 2010-10-12 |
| 6811600 | Chemically bulked kaolin clay pigment compatible with calcium carbonate and manufacture thereof | Sharad Mathur | 2004-11-02 |
| 6585822 | Kaolin clay glossing pigment and preparation thereof | Michael G. Londo, Sathanjheri A. Ravishankar | 2003-07-01 |
| 6440209 | Composite pigments comprising in-situ precipitated metal carbonate crystals | S. A. Ravishankar, Ernest M. Finch | 2002-08-27 |
| 5011534 | Calcined kaolin clay filler pigment for enhancing opacity and printing properties of newsprint and mechanical papers | John S. Babiec, Jr., M. Phillip Jameson, Andrew R. Negele, Mitchell J. Willis | 1991-04-30 |
| 4241142 | Clay pigment for coating paper | Adam F. Kaliski, John C. Nease | 1980-12-23 |