| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Agriculture | |
| #5 | Packaging and shipping | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Cleaning | |
| #3 | Spraying devices | |
| #4 | Lifting and pushing | |
| #5 | Domestic washing | |
| #6 | Agricultural harvest processing | |
| #7 | Unspecified technologies | |
| #8 | Dairy products production | |
| #9 | Unspecified technologies | |
| #10 | Chemical or physical processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Holdren Donald R | 9 |
| #2 | Holdren John A | 1 |
| #3 | Holdren Raymond S | 1 |
| #4 | Clevenger James H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6199917B1 | Twist pin | |
| US4198186A | Silo dig out tool | |
| US3514129A | Sanitary connector with locking means thereon | |
| US3405958A | Sanitary connector for spray stick | |
| US3167091A | Automatic chemical feeder | |
| US3104672A | Spray cleaning device | |
| US3018078A | Device for mounting a conduit to a tank | |
| US3031148A | Spray ball construction | |
| US3088611A | Tractor mounted lift | |
| US2965308A | Tank adapter kit | |
| US3001533A | Spray ball construction |