Issued Patents All Time
Showing 26–50 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7541420 | Method for making molded polycarbonate articles with improved color | Sjef Berndsen, Hans-Peter Brack, Bernd Jansen, Jan Henk Kamps, Edward Kung +3 more | 2009-06-02 |
| 7528214 | Methods for preparing transparent articles from hydroquinone polycarbonate copolymers | Gautam Chatterjee, Warren William Reilly, William D. Richards, Subash Scindia, Gokul Srinivasan +1 more | 2009-05-05 |
| 7521505 | Method of stabilization of dihydric phenols | Venugopal Boddapaty Venkata, Gurram Kishan, Jan-Pleun Lens, Daniel Francis Lowery, Mahesh Malusare +1 more | 2009-04-21 |
| RE40697 | Method for making an aromatic polycarbonate | Norberto Silvi, Mark Howard Giammattei, Alberto Nisoli, James Day, Narayan Ramesh +2 more | 2009-04-07 |
| 7498399 | Method of preparing ester-substituted diaryl carbonates | Paul William Buckley, David Dardaris | 2009-03-03 |
| 7498400 | Method of preparing polycarbonate | Bernd Jansen, Jan Henk Kamps, Edward Kung, Paul Michael Smigelski, Jr. | 2009-03-03 |
| 7482423 | Polycarbonates and method of preparing same | Bernd Jansen, Jan Henk Kamps, Edward Kung, Paul Michael Smigelski, Jr. | 2009-01-27 |
| 7189869 | Method for making polycarbonate | Gerardo Hidalgo, Alberto Nisoli, Lina Prada | 2007-03-13 |
| 7183371 | Method for making polycarbonate | Gerardo Hidalgo, Alberto Nisoli, Lina Prada | 2007-02-27 |
| 7132498 | Process to make polycarbonate from bismethylsalicylcarbonate (BMSC) | Norberto Silvi, Alberto Nisoli, Mark Howard Giammattei | 2006-11-07 |
| 7115700 | Method of polycarbonate preparation | James Anthony Cella, Jan Henk Kamps, Jan-Pleun Lens, Kathryn Lynn Longley, Narayan Ramesh +3 more | 2006-10-03 |
| 7041775 | Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate | Maria Tomas Martinez, Alberto Nisoli, Alfredo Lopez Carretero, Ganesh Kailasam, David Domingo | 2006-05-09 |
| RE38995 | Interfacial method of preparing ester-substituted diaryl carbonates | Timothy Brydon Burnell, Daniel J. Brunelle, Elliott West Shanklin, Paul Michael Smigelski, Jr., Ganesh Kailasam | 2006-02-28 |
| 6960641 | Method of making block copolymers by solid state polymerization | Gregory Allen O'Neil, James Day, Daniel J. Brunelle, Joseph Anthony Suriano, Paul Michael Smigelski, Jr. | 2005-11-01 |
| 6900283 | Method for making stable, homogeneous melt solutions | Narayan Ramesh, Kathryn Lynn Longley | 2005-05-31 |
| 6891015 | Solventless preparation of ester-substituted diaryl carbonates | Timothy Brydon Burnell, Ganesh Kailasam, James Anthony Cella | 2005-05-10 |
| 6887969 | Method and apparatus to make high molecular weight melt polycarbonate | James Day, Paul M. Smigeiski, Jr. | 2005-05-03 |
| 6870025 | Method of polycarbonate preparation | Jan-Pleun Lens, James Anthony Cella, Jan Henk Kamps, Kathryn Lynn Longley, Narayan Ramesh +3 more | 2005-03-22 |
| 6809817 | Method and apparatus for in situ determination of molten polycarbonate composition using electronic absorption spectroscopy | Radislav Alexandrovich Potyrailo, James Day | 2004-10-26 |
| 6797802 | Method of polycarbonate preparation | Warren William Reilly | 2004-09-28 |
| 6790929 | Method for making an aromatic polycarbonate | Norberto Silvi, Mark Howard Giammattei, Alberto Nisoli, James Day, Narayan Ramesh +2 more | 2004-09-14 |
| 6723823 | Method of polycarbonate preparation | Warren William Reilly, Brian James Grimmond | 2004-04-20 |
| 6683689 | Method for rapid determination of composition of polycarbonate resin | Radislav Alexandrovich Potyrailo | 2004-01-27 |
| 6608678 | Situ determination of DPC and BPA in polycarbonate by Raman spectroscopy | Radislav Alexandrovich Potyrailo, Ronald Eugene Shaffer | 2003-08-19 |
| 6600004 | Method of preparing polyestercarbonates | Paul Michael Smigelski, Jr. | 2003-07-29 |