| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 30 | |
| #2 | Canada | 3 | |
| #3 | France | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Lifting and pushing | |
| #3 | Load transportation vehicles | |
| #4 | Unspecified technologies | |
| #5 | Unspecified technologies | |
| #6 | Vehicle connections | |
| #7 | Vehicle brake control systems | |
| #8 | Winches | |
| #9 | Vehicle parts | |
| #10 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Holmes Ernest W | 14 |
| #2 | Cline Earl E | 8 |
| #3 | Holmes Jr Ernest W | 5 |
| #4 | Holmes Gerald E | 4 |
| #5 | Ernest Holmes | 3 |
| #6 | Bartow Strang S | 2 |
| #7 | Beasley William A | 1 |
| #8 | Freeman Robert L | 1 |
| #9 | Walter Holmes Ernest | 1 |
| #10 | Holmfs Ernest W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3858734A | Vehicle towing device | |
| US3024918A | Wreckers | |
| US2995225A | Self-locking drive | |
| US2913131A | Lifting and towing sling hitch for vehicles | |
| US2928557A | Wreckers | |
| US2826318A | Hydraulic packer body | |
| US2921697A | Hoisting apparatus | |
| US2796183A | Towing hitches | |
| US2625837A | Steering wheel clamp for automobiles | |
| US2697948A | Cable drum winding and unwinding mechanism | |
| US2479009A | Wrecker and similar hoisting apparatus | |
| US2405578A | Hoisting apparatus | |
| US2321549A | Sheave mounting for hoisting booms | |
| US2288568A | Creeper | |
| US2264569A | Wrecking truck | |
| US2183478A | Automobile towing device | |
| US1910106A | Automobile lift | |
| US1800020A | Hydraulic lift | |
| GB298230A | Improvements in automobile lifts and the like | |
| US1871522A | Oil draining station |