| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Croatia | 4 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | Norway | 3 | |
| #4 | WIPO (World Intellectual Property Organization) | 3 | |
| #5 | Yugoslavia (Serbia and Montenegro) | 3 | |
| #6 | Argentina | 2 | |
| #7 | Australia | 2 | |
| #8 | Brazil | 2 | |
| #9 | Czechoslovakia | 2 | |
| #10 | German Democratic Republic | 2 | |
| #11 | Denmark | 2 | |
| #12 | Spain | 2 | |
| #13 | Finland | 2 | |
| #14 | Greece | 2 | |
| #15 | Hungary | 2 | |
| #16 | India | 2 | |
| #17 | Iceland | 2 | |
| #18 | Republic of Korea | 2 | |
| #19 | Monaco | 2 | |
| #20 | Mexico | 2 | |
| #21 | New Zealand | 2 | |
| #22 | African Intellectual Property Organization | 2 | |
| #23 | Canada | 1 | |
| #24 | Latvia | 1 | |
| #25 | Malawi | 1 | |
| #26 | Romania | 1 | |
| #27 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Basic materials chemistry | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Construction of roads | |
| #2 | Compounding processes | |
| #3 | Working-up pitch |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wentzel Jarle | 38 |
| #2 | Aune Einar | 17 |
| #3 | Jarle Wentzel | 7 |
| #4 | Wentzel J | 5 |
| #5 | Einar Aune | 4 |
| #6 | Aune E | 3 |
| #7 | Jarie Wentzel | 1 |
| #8 | Einar Anne | 1 |
| Publication | Filing date | Title |
|---|---|---|
| HRP940658B1 | Method of foaming of bitumen | |
| HRP940653B1 | Process for mixing gravel and bitumen | |
| HRP940651B1 | Method for mixing gravel and bitumen | |
| HRP930451A2 | Apparatus for bitumen foaming | |
| MW5187A1 | A method and an apparatus for mixing gravel and bitumen | |
| RO98471B1 | Process for preparing expanded liquid asphalt | |
| EP0252092A1 | A method and an apparatus for mixing gravel and bitumen. | |
| YU183686A | Process for tar foaming | |
| WO8504681A1 | A method and apparatus for improving a base layer for road covering |