| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | Denmark | 2 | |
| #5 | Finland | 2 | |
| #6 | France | 2 | |
| #7 | United Kingdom | 2 | |
| #8 | Japan | 2 | |
| #9 | Netherlands | 2 | |
| #10 | Sweden | 2 | |
| #11 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry | |
| #2 | Foods and drinks | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Heterocyclic compounds | |
| #2 | Natural saccharides | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dahlgren S A | 4 |
| #2 | Dahlgren Stig Ake | 4 |
| #3 | Dahlgren Stig A | 4 |
| #4 | Dahlgren Stig Aoke | 2 |
| #5 | Suteigu Ooke Daaruguren | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4181667A | Process for the preparation of furfural | |
| US4156076A | Process for the conversion of lactose into monosaccharides and derivatives thereof | |
| US4076733A | Process for the preparation of furfural |