| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | United States | 4 | |
| #3 | Canada | 3 | |
| #4 | Belgium | 1 | |
| #5 | Brazil | 1 | |
| #6 | Germany | 1 | |
| #7 | Spain | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Israel | 1 | |
| #10 | Jordan | 1 | |
| #11 | Japan | 1 | |
| #12 | Morocco | 1 | |
| #13 | Mexico | 1 | |
| #14 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Non-metallic elements | |
| #2 | Metal production and refining | |
| #3 | Phosphatic fertilisers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pyman Ronald L | 4 |
| #2 | Lefever Joanne | 3 |
| #3 | Kouloheris A | 2 |
| #4 | Kouloheris Anastasios P | 2 |
| #5 | Lefever Jo A | 2 |
| #6 | Lowe Charles M T | 2 |
| #7 | Barreiro Agustin J | 2 |
| #8 | Koulokeris Anastasios Peter | 1 |
| #9 | Kouloheris Anastasios Peter | 1 |
| #10 | Clausen Herbert J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4493820A | Process for partial removing of impurities from a wet process phosphoric acid | |
| JO1021B1 | method for purifying phosphoric acid after solvent extraction | |
| US4258012A | Method of purifying uranium tetrafluoride hydrate and preparing uranium (VI) peroxide hydrate using a fluoride complexing agent | |
| US4247522A | Method of purifying uranium tetrafluoride hydrate and preparing uranium (VI) peroxide hydrate using a fluoride precipitating agent | |
| US4250155A | Method of purifying phosphoric acid after solvent extraction |