| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | Switzerland | 2 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | United States | 2 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Acyclic or carbocyclic compounds | |
| #2 | Unspecified technologies | |
| #3 | Earth drilling | |
| #4 | Heat-exchange device details |
| # | Name | Total Patents |
|---|---|---|
| #1 | Walker John Charles | 3 |
| #2 | Fuel Company Empire Gas And | 2 |
| #3 | Fisher James P | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB295356A | Improvements in or relating to methods of treating hydrocarbon gas or the like | |
| GB290613A | Improvements in or relating to methods of treating hydrocarbon gas or the like | |
| US1777356A | Heat-interchange apparatus | |
| US1646959A | Hydraulic vibratory drilling tool | |
| CA300798A | Method of treating gas | |
| CA300567A | Method of treating gas | |
| CA286499A | Gas manufacture |