| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Machines | |
| #4 | Steam turbines | |
| #5 | Pistons and sealings | |
| #6 | Hydraulic engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chambers John S | 12 |
| Publication | Filing date | Title |
|---|---|---|
| CA178518A | Superheater mechanism | |
| US993026A | Valve. | |
| US952510A | Throttle-valve. | |
| US872797A | Throttle-valve. | |
| US888064A | Steam-tight joint for rotary rods. | |
| US816217A | Throttle-valve. | |
| US793822A | Throttle-valve. | |
| US737706A | Throttle-valve. | |
| US733006A | Throttle-valve. | |
| US706300A | Throttle-valve. | |
| US701679A | Throttle-valve. | |
| US663599A | Throttle-valve. |