| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 3 | |
| #3 | Belgium | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Germany | 1 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Gas-flow silencers for machines | |
| #2 | Pipes | |
| #3 | Unspecified technologies | |
| #4 | Nails | |
| #5 | Lubricating of machines | |
| #6 | Sewers | |
| #7 | Hydraulic engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cassel Thomas R | 12 |
| #2 | Cassel Thomas Richard | 3 |
| #3 | Richard Cassel Thomas | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4312526A | Pipe coupling with open sleeve | |
| CA1128093A | Pipe coupling with open sleeve | |
| US4261600A | Pipe coupling for lap joints | |
| US4056273A | Coupling for pipe lap joints | |
| US3905623A | Pipe coupling with deformable outer sleeve | |
| US3863964A | Pipe joint with improved fastener assembly | |
| US3645357A | Quarter-wave tuner structure | |
| GB1262627A | Pipe coupling | |
| US3572778A | Pipe coupling | |
| US3574358A | Flexible pipe coupling | |
| US3525419A | Exhaust system | |
| CA915211A | Flexible pipe coupling |