| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | Australia | 3 | |
| #4 | Hungary | 3 | |
| #5 | Argentina | 2 | |
| #6 | Canada | 2 | |
| #7 | Japan | 2 | |
| #8 | Mexico | 2 | |
| #9 | German Democratic Republic | 1 | |
| #10 | Denmark | 1 | |
| #11 | Norway | 1 | |
| #12 | WIPO (World Intellectual Property Organization) | 1 | |
| #13 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Pharmaceuticals | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Medical preparations | |
| #2 | Therapeutic chemical compounds | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Eichel Herman J | 24 |
| #2 | Massmann Brent D | 22 |
| #3 | Massman Brent D | 3 |
| #4 | Haaman Jiei Aichieru | 2 |
| #5 | Burento Deii Masuman | 2 |
| #6 | Herman J Eichel | 1 |
| #7 | Brent D Massmann | 1 |
| #8 | Cobb Jr Joseph E | 1 |
| #9 | Blazek David R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5376384A | Delayed, sustained-release pharmaceutical preparation | |
| US5238686A | Sustained-release pharmaceutical preparation | |
| US4983401A | Sustained release pharmaceutical preparations having pH controlled membrane coatings | |
| US5026559A | Sustained-release pharmaceutical preparation | |
| ZA8702154B | Sustained-release pharmaceutical preparation | |
| AU7012487A | Sustained-release pharaceutical preparation |