Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6740731 | Degradation control of environmentally degradable disposable materials | Donald M. Bigg, Edward S. Lipinsky, John H. Litchfield, Billy R. Allen | 2004-05-25 |
| 6323307 | Degradation control of environmentally degradable disposable materials | Donald M. Bigg, Edward S. Lipinsky, John H. Litchfield, Billy R. Allen | 2001-11-27 |
| 6027677 | Films containing poly(hydroxy acid)s | George J. Ostapchenko | 2000-02-22 |
| 6025458 | Degradable polydioxaneone-based materials | Edward S. Lipinsky, James D. Browning, Alex Cheung, Kevin H. Schilling, Dan W. Verser | 2000-02-15 |
| 5834582 | Degradable polymer composition | Edward S. Lipinsky | 1998-11-10 |
| 5801223 | Degradable polydioxaneone-based materials | Edward S. Lipinsky, James D. Browning, Alex Cheung, Kevin H. Schilling, Dan W. Verser | 1998-09-01 |
| 5767222 | Degradable polydioxaneone-based materials | Edward S. Lipinsky, James D. Browning, Alex Cheung, Kevin H. Schilling, Dan W. Verser | 1998-06-16 |
| 5760118 | End use applications of biodegradable polymers | Edward S. Lipinsky, James D. Browning, Donald M. Bigg, Thomas A. Rogers | 1998-06-02 |
| 5556895 | Degradable polydioxaneone-based materials | Edward S. Lipinsky, James D. Browning, Alex Cheung, Kevin H. Schilling, Dan W. Verser | 1996-09-17 |
| 5502158 | Degradable polymer composition | Edward S. Lipinsky | 1996-03-26 |
| 5444113 | End use applications of biodegradable polymers | Edward S. Lipinsky, James D. Browning, Donald M. Bigg, Thomas A. Rogers | 1995-08-22 |
| 5424346 | Biodegradable replacement of crystal polystyrene | — | 1995-06-13 |
| 5332839 | Catalytic production of lactide directly from lactic acid | Herman P. Benecke, Richard A. Markle | 1994-07-26 |
| 5319107 | Method to produce cyclic esters | Herman P. Benecke, Alex Cheung, George E. Cremeans, Melville E. D. Hillman, Edward S. Lipinsky +1 more | 1994-06-07 |
| 5274127 | Lactide production from dehydration of aqueous lactic acid feed | Richard A. Markle, Russell K. Smith | 1993-12-28 |
| 5252642 | Degradable impact modified polyactic acid | Joseph Preston | 1993-10-12 |
| 5216050 | Blends of polyactic acid | — | 1993-06-01 |
| 5180765 | Biodegradable packaging thermoplastics from lactides | — | 1993-01-19 |
| 4961872 | Calcium hypochlorite tablets | — | 1990-10-09 |
| 4800066 | End of life indicator for automatic toilet cleaning devices | Sylvester Sowell | 1989-01-24 |
| 4716964 | Use of degradable ball sealers to seal casing perforations in well treatment fluid diversion | Steven R. Erbstoesser, Claude E. Cooke, Jr., Michael M. Epstein | 1988-01-05 |
| 4698415 | Method for the preparation of polyarylene sulfide with aqueous polyethylene glycol mixture | Herman P. Benecke, Sylvester Sowell | 1987-10-06 |
| 4665136 | Process for producing novel block alkylene polycarbonate copolymers | Joseph G. Santangelo, James J. Weber | 1987-05-12 |
| 4633929 | Method for producing metal castings | Joseph G. Santangelo, James J. Weber, Richard D. Tenaglia | 1987-01-06 |
| 4526695 | Composition for reducing the permeability of subterranean formations | Steven R. Erbstoesser, Claude E. Cooke, Jr., Michael M. Epstein | 1985-07-02 |