| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | India | 2 | |
| #5 | United States | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | Ireland | 1 | |
| #8 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry |
| # | Technology | |
|---|---|---|
| #1 | Acyclic or carbocyclic compounds | |
| #2 | Heterocyclic compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fitzpatrick Stephen W | 14 |
| Publication | Filing date | Title |
|---|---|---|
| US5608105A | Production of levulinic acid from carbohydrate-containing materials | |
| US4897497A | Lignocellulose degradation to furfural and levulinic acid |