LEO VIGNON has a total of 17 patent applications. Its first patent ever was published in 1906. It filed its patents most often in France and United Kingdom. Its main competitors in its focus markets basic materials chemistry, materials and metallurgy and environmental technology are HYDROGEN ENERGY INTERNAT LTD, RINECO CHEMICAL IND INC and JAUBERT GEORGE FRANCOIS.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 16 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Materials and metallurgy | |
| #3 | Environmental technology | |
| #4 | Organic fine chemistry | |
| #5 | Textiles and paper |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vignon Leo | 16 |
| #2 | Leo Vignon | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB190720685A | Improved Process for the Manufacture of Gas suitable for Lighting or Heating Purposes. |