| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Engines, pumps and turbines | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Gearing | |
| #3 | Pumps | |
| #4 | Clutches and brakes | |
| #5 | Pistons and sealings | |
| #6 | Venting or aerating devices | |
| #7 | Refrigerators | |
| #8 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Luitwieler Samuel W | 16 |
| Publication | Filing date | Title |
|---|---|---|
| US1818413A | Compressor | |
| US1775286A | Compressor | |
| US1512034A | Cam and spindle construction | |
| US1542314A | Cam-driven pump | |
| US1542313A | Cam-driven pump | |
| US1542312A | Cam-driven pump | |
| CA184142A | Pump piston | |
| US1214696A | Pump-piston. | |
| US1152114A | Combined cut-off and relief valve. | |
| US1152113A | Motor-propelled fire apparatus. | |
| US1023084A | Variable-speed mechanism. | |
| US1070706A | Driving mechanism for triplex pumps. | |
| US926267A | Cam-operated pump. | |
| US715825A | Centrifugal pump. | |
| US676542A | Pumping and reciprocating mechanism. | |
| US819295A | Pump mechanism. |