| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | United Kingdom | 2 | |
| #3 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Measurement | |
| #4 | Medical technology | |
| #5 | Chemical engineering | |
| #6 | Machine tools | |
| #7 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Unspecified technologies | |
| #3 | Water-closets with flushing devices | |
| #4 | Mechanically-driven clocks | |
| #5 | Cleaning | |
| #6 | Nails | |
| #7 | Earth drilling | |
| #8 | Locks | |
| #9 | Accessories for machine tools | |
| #10 | Dentistry |
| # | Name | Total Patents |
|---|---|---|
| #1 | Walker William E | 9 |
| #2 | Walker J Mort | 1 |
| #3 | Walker Jr William E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB201111550D0 | Crossbar adaptor for a goal | |
| GB8919442D0 | "toy american footballer" | |
| US3259918A | Water saving device | |
| US2915085A | Tank cleaner | |
| US2457960A | Drill bit | |
| US1380612A | Card-raising attachment for filing-drawers | |
| US1152865A | Door-lock. | |
| US1091261A | Chronometer-escapement. | |
| US1215442A | Orthodontia appliance. | |
| CA146113A | Nut lock | |
| US1099410A | Nut-lock. |