| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Canada | 4 | |
| #3 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Textiles and paper |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Unspecified technologies | |
| #3 | Clutches and brakes | |
| #4 | Apparatus for bronze printing | |
| #5 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chalmers John | 12 |
| Publication | Filing date | Title |
|---|---|---|
| GB191404601A | An Improved Screw Stopper for Aerated Water and other Bottles. | |
| GB191226466A | Improvements in Variable Speed Gearing. | |
| GB191219492A | An Improved Variable-speed Gear. | |
| US1081092A | Transmission-gearing. | |
| US1046440A | Clutch. | |
| GB190925488A | An Improved Mount for Printing and Embossing Surfaces. | |
| CA110242A | Power transmission gear | |
| US831416A | Transmission-gear. | |
| GB189904246A | Improvements in Dust and like Carts or Vehicles, applicable also for Scavengering purposes. | |
| CA215772A | Hot air furnace | |
| CA291085A | Radiator | |
| CA434263A | Printing machine |