| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Engines, pumps and turbines | |
| #4 | Packaging and shipping | |
| #5 | Civil engineering | |
| #6 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Gearing | |
| #3 | Cranes | |
| #4 | Venting or aerating devices | |
| #5 | Pumps | |
| #6 | Earth drilling | |
| #7 | Soldering, welding and flame cutting | |
| #8 | Servomotors | |
| #9 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sargent Sumner B | 4 |
| #2 | Hugo Nyman | 3 |
| #3 | Freund Kenneth O | 2 |
| #4 | Peter Valenti | 2 |
| #5 | Johnston Roger L | 2 |
| #6 | Sargent Edward J | 1 |
| #7 | Wysong Jr Paul V | 1 |
| #8 | Cooper Roy F | 1 |
| #9 | Devendorf Paul M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3368696A | Telescopic crane boom | |
| US3244022A | Ball screw and nut assembly | |
| US3258983A | Preloaded ball screw and nut assembly | |
| US3118650A | Ball valve construction | |
| US3081708A | Rotary motor or pump | |
| US2907223A | Jack screw drive | |
| US3024732A | Regulating valve | |
| US2277356A | Valve seat and method of making same | |
| US1742486A | Pump jack | |
| US1681789A | Sucker-rod rotor | |
| US1574518A | Pump-plunger rotor | |
| US1653510A | Sucker rod and plunger rotor | |
| CA788304A | Telescopic boom for a crane |