| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Australia | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | WIPO (World Intellectual Property Organization) | 3 | |
| #5 | Canada | 2 | |
| #6 | Denmark | 1 | |
| #7 | Finland | 1 | |
| #8 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Surface technology and coating | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | Sewers | |
| #3 | Spraying devices | |
| #4 | Finishing work on buildings | |
| #5 | Processes for applying fluent materials | |
| #6 | Winches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Trimble Carroll O | 19 |
| #2 | Shook William E | 7 |
| #3 | Jury Danny C | 7 |
| #4 | Shook William | 2 |
| #5 | Melton Francis Colin Geoffrey | 1 |
| #6 | Walker Keith Raymond | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2017320712A1 | Winch and method for using the same | |
| US2016017590A1 | Centrifugal casting concrete pipe method | |
| US5452853A | Method and apparatus for spraying grout onto the interior surface of an enclosed elongated cavity | |
| US5017313A | Method and means for repairing existing manhole | |
| US4995584A | Cast-in-place manhole liner apparatus | |
| US5032197A | Cast-in-place manhole liner method | |
| US4997602A | Cast-in-place manhole liner method | |
| AU4309389A | Cast-in-place manhole liner apparatus and method |