| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 14 | |
| #2 | Canada | 7 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Agriculture | |
| #4 | Measurement | |
| #5 | Materials and metallurgy | |
| #6 | Transport | |
| #7 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Handles for hand implements | |
| #2 | Crop agriculture | |
| #3 | Unspecified technologies | |
| #4 | Wood working | |
| #5 | Analysing materials | |
| #6 | Unspecified technologies | |
| #7 | Street cleaning | |
| #8 | Hand carts | |
| #9 | Bending wood | |
| #10 | Metal tempering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brandenburg Francis C | 14 |
| #2 | Olvey Charles L | 2 |
| #3 | Butts Cornelius L | 1 |
| #4 | Walter Browning Joseph | 1 |
| #5 | Ellis Bill D | 1 |
| #6 | Rd William W Wood | 1 |
| #7 | Upton Clifford D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3198565A | Shovels | |
| US2901261A | Collapsible cart | |
| US2937046A | Shovel | |
| US2178509A | Shovel | |
| US1843120A | Metal shovel handle | |
| US1873276A | Method and apparatus for bending wood | |
| US1755236A | Shovel and shovel handle | |
| US1725605A | Reenforced handle | |
| US1727364A | Shovel handle | |
| US1727333A | Shovel handle | |
| US1518246A | Shovel | |
| US1629858A | Method and apparatus for testing shovels | |
| US1500571A | Method and apparatus for simultaneously forming and heat treating shovels | |
| US1556200A | Shovel | |
| CA260297A | Shovel handle | |
| CA405194A | Shovel | |
| CA258861A | Method and apparatus for simultaneously forming and heat-treating shovels | |
| CA364447A | Metal-and-wood shovel handle | |
| CA374514A | Shovel | |
| CA370068A | Shovel |