| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Agriculture | |
| #4 | Machines | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Street cleaning | |
| #2 | Dredging | |
| #3 | Load transportation vehicles | |
| #4 | Planting | |
| #5 | Motor vehicles | |
| #6 | Air-conditioning | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gledhill Edward C | 5 |
| #2 | Gledhill W | 3 |
| #3 | Gledhill William E | 2 |
| #4 | Gledhill William | 2 |
| #5 | Gledhill Garland | 1 |
| #6 | Mullenhour William Newton | 1 |
| #7 | Sherman Philip Leland | 1 |
| #8 | Sherman P | 1 |
| #9 | Claude Britton | 1 |
| #10 | Miller Harry H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6892480B1 | Load reliever for plow moldboard | |
| US6125559A | Plow trip board biased by elastic torsion joint | |
| US3952431A | Vehicular carried plow coupling | |
| US3754711A | Low profile feeding spreader | |
| US3746368A | Vehicular carried plow coupling | |
| US3722025A | Leaf collector | |
| US2183097A | Dust hazard eliminator | |
| US2219837A | Air conditioned building | |
| US2146065A | Steering gear for road machinery | |
| US2021660A | Road machine | |
| US1834241A | Road grader |