| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Mechanical elements | |
| #3 | Machine tools | |
| #4 | Transport | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Gas-flow silencers for machines | |
| #3 | Vehicle suspension arrangements | |
| #4 | Punching metal | |
| #5 | Climate change adaptation technologies | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Florian Roy S | 13 |
| #2 | Evans Ralph K | 5 |
| #3 | Donovan Jr Edmund D | 1 |
| #4 | Donovan Edmund D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5073353A | Catalytic converter front flange and method of making same | |
| US4519639A | Hinged flange for tailpipes and the like | |
| US4465252A | Compact universal hanger for tailpipes and the like | |
| US4363436A | Method of making muffler clamps | |
| US4270251A | Muffler clamp and method of making same | |
| US4209155A | Heavy-duty bracket and hanger assembly employing same | |
| US4004768A | Universal joint hanger for tailpipes and the like |