| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Scaffolding | |
| #2 | Servomotors | |
| #3 | Winches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Herrell Robert C | 2 |
| #2 | Albert Negovan | 2 |
| #3 | Clark Roggie William | 2 |
| #4 | Smith James R | 2 |
| #5 | Roggie William Clark | 1 |
| #6 | Droeger Carl C | 1 |
| #7 | Reinhardt John P | 1 |
| #8 | Roggie William C | 1 |
| #9 | Stratton Estel R | 1 |
| #10 | Meloy Eugene J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1369747A | Platform assembly including a guard rail assembly | |
| US3675736A | Guard rail assembly for a platform | |
| US3515247A | Safety device for a winch | |
| US3452837A | Scaffold truck | |
| US3452647A | Cylinder assembly | |
| US3232377A | Adjustable scaffold | |
| US3095060A | Scaffolding for dome structures | |
| GB653953A | Improvements in or relating to scaffolding | |
| US2593122A | Scaffold | |
| US2533174A | Shore | |
| US2405321A | Shore |