| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 4 | |
| #2 | Canada | 3 | |
| #3 | United States | 3 | |
| #4 | Australia | 1 | |
| #5 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Packaging and shipping | |
| #3 | Chemical engineering | |
| #4 | Mechanical elements | |
| #5 | Medical technology | |
| #6 | Textiles and paper | |
| #7 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Solid waste disposal | |
| #2 | Closing and opening bottles | |
| #3 | Packaging | |
| #4 | Compressed gas holders | |
| #5 | Implantable devices | |
| #6 | Cleaning | |
| #7 | Unspecified technologies | |
| #8 | Typewriters | |
| #9 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Campbell Michael C | 12 |
| #2 | Campbell Katherine C | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US2013042944A1 | Gas evacuation system with counter | |
| US2005237348A1 | Method of dot size determination by an imaging apparatus | |
| AU5115699A | Aerosol-container evacuating system | |
| CA2200231A1 | Safety harness system for children with medical lines | |
| WO9622916A1 | Gas tank evacuator | |
| CA2144571A1 | Gas tank evacuator | |
| US5265762A | Puncturing device for aerosol containers |