| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 3 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | India | 2 | |
| #6 | Norway | 2 | |
| #7 | United States | 2 | |
| #8 | Australia | 1 | |
| #9 | Switzerland | 1 | |
| #10 | France | 1 | |
| #11 | Italy | 1 | |
| #12 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Surface technology and coating | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Working-up pitch | |
| #2 | Electrolytic metal production | |
| #3 | Climate change mitigation in goods production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hvistendahl Jan | 7 |
| #2 | Bruff William | 5 |
| #3 | Petersen Kjell B | 4 |
| #4 | Jan Hvistendahl | 1 |
| #5 | Engesland A | 1 |
| #6 | Olsen Arnt Tellef | 1 |
| #7 | Petersen K | 1 |
| #8 | Uiriamu Burufu | 1 |
| #9 | Syrdal Adolf Karsten | 1 |
| #10 | Keru Bii Petaasen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4734182A | Method for producing an electrolytic cell cathode | |
| DE2803162A1 | METHOD AND DEVICE FOR MELTING PECH |