| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 3 | |
| #2 | Jordan | 3 | |
| #3 | African Intellectual Property Organization | 3 | |
| #4 | USSR (Union of Socialist Soviet Republics) | 3 | |
| #5 | India | 2 | |
| #6 | Luxembourg | 2 | |
| #7 | United States | 2 | |
| #8 | Australia | 1 | |
| #9 | Brazil | 1 | |
| #10 | Canada | 1 | |
| #11 | France | 1 | |
| #12 | Italy | 1 | |
| #13 | Lithuania | 1 | |
| #14 | Mexico | 1 | |
| #15 | Portugal | 1 | |
| #16 | WIPO (World Intellectual Property Organization) | 1 | |
| #17 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Chemical engineering | |
| #3 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Davister Armand Laurent | 14 |
| #2 | Martin Georges-Francois | 9 |
| #3 | Thirion Francis Arthur | 6 |
| #4 | Dubreucq Andre Robert | 3 |
| #5 | Davister Armand L | 3 |
| #6 | Davister Arman Loran | 3 |
| #7 | Laurent Davister Armand | 2 |
| #8 | Marten Zhorzh-Fransua | 1 |
| #9 | Martin Francois Georges | 1 |
| #10 | Tiron Fransis Artur | 1 |
| Publication | Filing date | Title |
|---|---|---|
| LT2265B | Understanding vacuum filter | |
| LU85906A1 | Wet process phosphoric acid and calcium sulphate prodn. - with adjustment of flow rates, temp. and concn. to control crystal form of the by=product | |
| JO1293B1 | method for preparing phosphoric acid & calcium sulfate | |
| LU85251A1 | Improvement for rotary vacuum filters with horizontal filtration plan | |
| OA07512A | Process and installation for re-extracting, in several successive stages, uranium from an extractant. |