| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United Kingdom | 4 | |
| #3 | Austria | 2 | |
| #4 | France | 2 | |
| #5 | Switzerland | 1 | |
| #6 | Denmark | 1 | |
| #7 | Spain | 1 | |
| #8 | Finland | 1 | |
| #9 | United States | 1 |
| # | Technology | |
|---|---|---|
| #1 | Acyclic or carbocyclic compounds | |
| #2 | Macromolecular compounds compositions | |
| #3 | Siphons | |
| #4 | Candles | |
| #5 | Separation | |
| #6 | Refining |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gelbke Dr-Ing Milan | 3 |
| #2 | Sudfeldt Co | 1 |
| #3 | Meyer Franz M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB148763A | Process for obtaining salts of sulpho-acids from lignite tar oils | |
| US1100694A | Method of producing and maintaining a high vacuum. | |
| GB191225711A | An Improved Method of and Apparatus for Uniformly Heating Vessels such as are used, for instance for Distilling Purposes. | |
| GB191217430A | Improved Process for Deodorising Train Oil. |