| 5529790 |
Delayed, sustained-release diltiazem pharmaceutical preparation |
Brent D. Massmann, Joseph E. Cobb, JR. |
1996-06-25 |
| 5478573 |
Delayed, sustained-release propranolol pharmaceutical preparation |
Brent D. Massmann, David R. Blazek |
1995-12-26 |
| 5376384 |
Delayed, sustained-release pharmaceutical preparation |
Brent D. Massmann |
1994-12-27 |
| 5238686 |
Sustained-release pharmaceutical preparation |
Brent D. Massmann |
1993-08-24 |
| 5102668 |
Sustained release pharmaceutical preparation using diffusion barriers whose permeabilities change in response to changing pH |
Brent D. Massmann |
1992-04-07 |
| 5026559 |
Sustained-release pharmaceutical preparation |
Brent D. Massmann |
1991-06-25 |
| 4983401 |
Sustained release pharmaceutical preparations having pH controlled membrane coatings |
Brent D. Massmann |
1991-01-08 |
| 4822619 |
Controlled release pharmaceutical preparation containing a gastrointestinal irritant drug |
Brent D. Massman |
1989-04-18 |
| 4316884 |
Sustained release pharmaceutical formulation |
Abu Alam |
1982-02-23 |