| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 21 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Materials and metallurgy | |
| #3 | Environmental technology | |
| #4 | Basic materials chemistry | |
| #5 | Textiles and paper | |
| #6 | Organic fine chemistry | |
| #7 | Furniture and games |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lance Denis | 21 |
| #2 | Elworthy Herbert Samuel | 2 |
| #3 | Ellen Gertrude Elworthy | 1 |
| #4 | Joannis Charles-Leon De | 1 |
| #5 | Denis Lance | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB190603994A | Improvements in Processes for the Recovery of Sulphurous Acid and Carbonic Acid in the Treatment either of Sulphurous Ores or Sulphates or Sulphurous Compounds of any kind as well as in Methods of Producing Nitrogen. |