Issued Patents All Time
Showing 25 most recent of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815947 | Substantially symmetrical 3-arm star block copolymers | William B. Farnham, Hoang Vi Tran, Daqing Zhang | 2017-11-14 |
| 9169383 | Preparation, purification and use of high-X diblock copolymers | William B. Farnham, Hoang Vi Tran | 2015-10-27 |
| 8163464 | Propanoates and processes for preparing the same | James R. Sounik, George W. Clark | 2012-04-24 |
| 7897697 | Epoxy resin, blocked polyisocyanate or polymers with polyhydroxystyrenes having novolak structure | Edward G. Zey | 2011-03-01 |
| 7728082 | Methods for preparing polymers from phenolic materials and compositions relating thereto | Keith Kunitsky, James R. Sounik, Mark E. Wagman | 2010-06-01 |
| 7678945 | Derivatized polyhydroxystyrenes with a novolak type structure and processes for preparing the same | Edward G. Zey | 2010-03-16 |
| 7662538 | Derivatized polyhydroxystyrenes (DPHS) with a novolak type structure and blocked DPHS (BDPHS) and processes for preparing the same | Edward G. Zey, Hiroshi Okazaki | 2010-02-16 |
| 7632896 | Derivatized novolak polyhydroxystyrene | Edward G. Zey | 2009-12-15 |
| 7566752 | Epoxy resins or polyisocyanates reacted with derivatized novolak polyhydroxystyrene | Edward G. Zey | 2009-07-28 |
| 7534837 | Random copolymers of ethylene and 4-vinylphenyl esters and method for preparing the same | Mark E. Wagman | 2009-05-19 |
| 7521526 | Methods for preparing polymers from phenolic materials and compositions relating thereto | Keith Kunitsky, James R. Sounik, Mark E. Wagman | 2009-04-21 |
| 7371800 | Derivatized novolak polyhydroxystyrene from hydroxyphenylmethylcarbinol | Edward G. Zey | 2008-05-13 |
| 7312281 | Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity | James R. Sounik | 2007-12-25 |
| 7148320 | Polymer purification | James R. Sounik | 2006-12-12 |
| 6864324 | Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity | James R. Sounik | 2005-03-08 |
| 6787611 | Purification means | — | 2004-09-07 |
| 6759483 | Preparation of homo-, co- and terpolymers of substituted styrenes | James R. Sounik | 2004-07-06 |
| 6593431 | Purification means | — | 2003-07-15 |
| 6414110 | Purification means | James R. Sounik, Keith M. Russ | 2002-07-02 |
| 5773591 | Process for preparing coumarin sulfonates | Mohammad Aslam, George Kvakovszky | 1998-06-30 |
| 5739295 | Photoactive coumarin sulfonate compounds | Mohammad Aslam, George Kvakovszky, Kenneth G. Davenport, Douglas J. Gordon | 1998-04-14 |
| 5726295 | Photoactive coumarin derivatives | Mohammad Aslam, Debasish Kuila | 1998-03-10 |
| 5726296 | Process for preparing photoactive coumarin derivatives | Mohammad Aslam, Debasish Kuila | 1998-03-10 |
| 5625007 | Process for making low optical polymers and copolymers for photoresists and optical applications | James H. Rea | 1997-04-29 |
| 5438142 | Functionalized tris(hydroxyphenyl) compounds | John R. Fritsch, Olan S. Fruchey, Debasish Kuila, George Kvakovszky, Mark Murphy +2 more | 1995-08-01 |