| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 4 | |
| #2 | Spain | 3 | |
| #3 | Switzerland | 2 | |
| #4 | Denmark | 2 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Knapp Wenzl | 9 |
| #2 | Steilberg Richard | 7 |
| Publication | Filing date | Title |
|---|---|---|
| GB190000910A | Improvements in Apparatus for the Production of Compressed Gas. | |
| US669140A | Production of compressed gas. | |
| GB189916618A | Process for and Apparatus for the Production of Compressed Gas. | |
| GB189916619A | Improved Process of and Apparatus for the Production of Illuminating Gas. | |
| GB189313838A | A Process for the Production of Coloured Pictures, Writing, and the like on Glass, Porcelain, or Enamel. |