| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 16 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Water-closets with flushing devices | |
| #5 | Locks | |
| #6 | Winches | |
| #7 | Elevators and escalators | |
| #8 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wilson Elihu C | 17 |
| #2 | Webster Wilson William | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2066086A | Flushometer | |
| US1741389A | Latch | |
| US1750871A | Well screen | |
| US1660853A | Automatic pipe tongs | |
| US1643688A | Pipe-supporting clamp | |
| US1575142A | Hoisting apparatus | |
| US1570812A | Latch guard for casing-handling tools | |
| US1760930A | Well-pipe coupling | |
| US1575141A | Pipe tongs | |
| US1618254A | Tool joint | |
| US1618253A | Tool joint | |
| US1513146A | Pump | |
| US1498141A | Well elevator | |
| US1341957A | Hoist | |
| CA109191A | Under reamer | |
| US827595A | Underreamer. | |
| US736907A | Casing-spear. |