| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Electrical machinery and energy | |
| #5 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Measuring volume | |
| #3 | Containers for goods storage | |
| #4 | Unspecified technologies | |
| #5 | Certain plastics | |
| #6 | Spraying devices | |
| #7 | Unspecified technologies | |
| #8 | Venting or aerating devices | |
| #9 | Distribution of electric power | |
| #10 | Shaping of plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mckinnon Robert M | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US5333750A | Durable lightweight meter box | |
| US5249697A | Meter pit | |
| US5161836A | Pipe connecting apparatus | |
| US5193859A | Reinforced pipe coupling member | |
| CA2010767A1 | Reinforced pipe coupling member and method of manufacture | |
| US4966397A | Flexible pipe saddle | |
| US4852602A | Riser check valve | |
| US4608858A | Pneumatic test plug | |
| US4453749A | Cut off nipples |