| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Finland | 1 | |
| #6 | Japan | 1 | |
| #7 | Republic of Korea | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Pharmaceuticals |
| # | Technology | |
|---|---|---|
| #1 | Medical preparations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shell John W | 12 |
| Publication | Filing date | Title |
|---|---|---|
| CA2132012A1 | Alkyl-substituted cellulose-based sustained-release oral drug dosage forms | |
| US5007790A | Sustained-release oral drug dosage form |