| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 7 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Engines, pumps and turbines | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Gas-flow silencers for machines | |
| #2 | Supplying combustion engines | |
| #3 | Office furniture | |
| #4 | Unspecified technologies | |
| #5 | Unspecified technologies | |
| #6 | Nails | |
| #7 | Climate change mitigation in transportation | |
| #8 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Marx Joseph P | 15 |
| #2 | Daubner William L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3145800A | Mufflers | |
| US2667151A | Exhaust manifold for internalcombustion engines | |
| US2573474A | Muffler containing inner and outer end walls and longitudinal chambers | |
| US2511597A | Muffler with cup-shaped baffle | |
| US2467842A | Setting and locking fitting | |
| US2416452A | Muffler | |
| US2343152A | Muffler | |
| US2183296A | Telescopic bushing | |
| CA677353A | Mufflers | |
| CA437856A | Muffler | |
| CA486656A | Mufflers | |
| CA467115A | Mufflers | |
| CA395409A | Telescopic bushing | |
| CA474884A | Mufflers with cup shaped baffles | |
| CA751192A | Nut locking structures |