| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Australia | 1 | |
| #3 | Canada | 1 | |
| #4 | Israel | 1 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines | |
| #4 | Measurement | |
| #5 | Machine tools | |
| #6 | Mechanical elements | |
| #7 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Horticulture | |
| #2 | Non-positive-displacement pumps | |
| #3 | Spraying devices | |
| #4 | Measuring volume | |
| #5 | Pipes | |
| #6 | Unspecified technologies | |
| #7 | Earth drilling | |
| #8 | Unspecified technologies | |
| #9 | Tools for connecting or disengaging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Purtell Rufus J | 9 |
| #2 | Purtell R | 5 |
| #3 | Purtell Rufus Judson | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4352460A | Automatic furrow guide | |
| US3897801A | Stretch pipe irrigation system | |
| CA1016836A | Surge control | |
| US3888281A | One wheel pull-type irrigation system | |
| US3844308A | Dirigible irrigation system | |
| US3868198A | Surge control | |
| US3806034A | Sprinkler head spoon | |
| US3838599A | Flow meter | |
| US3836285A | Water regulator and power governor | |
| US3798738A | Mushroom valve stuffer | |
| US3417766A | Automatic alignment of irrigation system | |
| US3444941A | Automatic irrigator | |
| IL25455A | Sand pump for removing sand from fluid flow | |
| US3381894A | Method of aligning irrigation system | |
| US3386464A | Trail tube movers |