| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Environmental technology | |
| #4 | Electrical machinery and energy | |
| #5 | Mechanical elements | |
| #6 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bliffert Walter J | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US2377852A | Attachment for internal combustion engines | |
| US1900272A | Intake manifold | |
| US1517699A | Pedal lock | |
| US1535095A | Air and fuel heater | |
| US1562077A | Combined vaporizer and auxiliary air-inlet device | |
| US1579688A | Intake manifold | |
| US1551130A | Auxiliary sleeve for gasoline tanks | |
| US1527776A | Auxiliary air inlet and mixing device | |
| US1501196A | Manifold gasket | |
| US1493800A | Spark plug | |
| US1330933A | Spring-fork for cycles |