| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Packaging and shipping | |
| #5 | Audio-visual technology | |
| #6 | Thermal processes | |
| #7 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Measuring force, work and fluid pressure | |
| #4 | Television | |
| #5 | Earth drilling | |
| #6 | Measuring volume | |
| #7 | Steam generation | |
| #8 | Unspecified technologies | |
| #9 | Handling thin material | |
| #10 | Winches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fernald Charles F | 6 |
| #2 | Bosworth Charles B | 4 |
| #3 | Webster George A | 2 |
| #4 | Sanderson Richard P C | 1 |
| #5 | Winther Charles A G | 1 |
| #6 | Hale Sewall James | 1 |
| #7 | Sewall James H | 1 |
| #8 | Hannaford Thomas Sherman | 1 |
| #9 | Fernald Charles Frederick | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1004320A | Valve. | |
| US993232A | Gage-glass cock. | |
| US973596A | Reducing-wheel. | |
| US942492A | Valve. | |
| CA102741A | Valve | |
| US922686A | Valve. | |
| CA96730A | Fluid tight joint | |
| US851165A | Valve. | |
| CA92045A | Means of operating cylinder cocks | |
| US784354A | Means for operating cylinder-cocks. | |
| US798656A | Bull's-eye. | |
| US757146A | Relief-valve for locomotive-engine cylinders. | |
| US756463A | Blow-off valve. | |
| US691588A | Card for steam-engine indicators. | |
| US674674A | Safety-valve. | |
| US674675A | Safety-valve. | |
| US687391A | Steam-engine indicator. | |
| US686179A | Pressure and vacuum gage. |