| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 28 | |
| #2 | United Kingdom | 14 | |
| #3 | Canada | 5 | |
| #4 | Switzerland | 2 | |
| #5 | Austria | 1 | |
| #6 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Furniture and games | |
| #3 | Audio-visual technology | |
| #4 | Machine tools | |
| #5 | Consumer goods | |
| #6 | Machines | |
| #7 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Walker Edwin | 50 |
| #2 | Shaw Joseph | 1 |
| #3 | Walker Clarence L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1226830A | Turnbuckle. | |
| US1203666A | Phonograph. | |
| US1203667A | Phonograph. | |
| US1138704A | Ice-cream dipper. | |
| US1138706A | Ice-cream disher. | |
| US1138705A | Ice-cream disher. | |
| US1115754A | Lemon-squeezer. | |
| US1150083A | Crown-opener. | |
| US1162116A | Ice-cream disher. | |
| US1012944A | Ice-cream dipper. | |
| US1038692A | Method of making corkscrews. | |
| US1138703A | Ice-cream dipper. | |
| GB190804238A | An Improved Lock for Cycles and the like. | |
| GB190726210A | Improvements in the Coating or Covering of Iron, Steel, or other Metal Tubes, with Lead or any of its Alloys. | |
| US964588A | Bottle-holder for cork-pullers and other machinery. | |
| US1057021A | Automatic cork-puller. | |
| CA100076A | Phonograph | |
| CA100077A | Phonograph | |
| US962603A | Meat and fruit press. | |
| US961184A | Screw-driver. |