| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 12 | |
| #2 | Canada | 7 | |
| #3 | United States | 6 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines | |
| #3 | Audio-visual technology | |
| #4 | Control |
| # | Technology | |
|---|---|---|
| #1 | Weighing | |
| #2 | Unspecified technologies | |
| #3 | Teaching materials | |
| #4 | Unspecified technologies | |
| #5 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hopkinson Joseph | 25 |
| #2 | Lowis John | 4 |
| #3 | West Percy Arnold | 1 |
| #4 | J. Hopkinson & Company | 1 |
| #5 | J Horkenson & Co Ltd | 1 |
| #6 | Hopkinson Lawrence Haigh | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB120846A | Improved Device for Advertising Purposes and Toy for Children. | |
| GB110072A | Improved Educational or Advertising Appliance. | |
| US1248862A | Scale. | |
| CA162682A | Computing scales | |
| CA162681A | Computing scales | |
| CA162680A | Computing scales | |
| CA151614A | Scales | |
| CA156604A | Knife edge bearing | |
| US1065808A | Spring-balance scale. | |
| US1067341A | Knife-edge bearing. | |
| US1012641A | Knife-edge bearing. | |
| US1146794A | Knife-edge bearing. | |
| US1077935A | Computing-scale. | |
| CA104491A | Computing scales | |
| GB190621310A | Improvements in Stop Valves | |
| GB190606285A | Improvements in Price Scales | |
| GB190421366A | Improvements in Flue Tubes of Steam Generators. | |
| GB190412228A | Improvements in or relating to Weighing Scales | |
| CA85414A | Scales | |
| GB190020132A | Improvements in Valves |