| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 20 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Medical technology | |
| #3 | Packaging and shipping | |
| #4 | Engines, pumps and turbines | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Machines for making railways | |
| #3 | Shafts | |
| #4 | Pumps | |
| #5 | Physical therapy devices | |
| #6 | Operating tables | |
| #7 | Unspecified technologies | |
| #8 | Lifting and pushing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Carlson Anthony E | 20 |
| Publication | Filing date | Title |
|---|---|---|
| US1973975A | Rotary rock bit construction | |
| US2061060A | Nonsanding pump | |
| US1886789A | Well reamer construction | |
| US1996322A | Rock drilling core bit | |
| US1921281A | Adjustable locking tubing tong | |
| US1893224A | Well reaming device | |
| US1866082A | Expansion drill bit | |
| US1776806A | Reducing and massaging device | |
| US1661715A | Rotary bit | |
| US1737215A | Rotary bit | |
| US1650261A | Buttocks elevator | |
| US1611336A | Railway crossing | |
| US1620190A | Apparatus for elevating and lowering oil-well tubing | |
| US1659942A | Rock-tunneling machine | |
| US1624312A | Rock drill | |
| US1565788A | Reamer | |
| US1514893A | Jack | |
| US1443559A | Railway crossing | |
| US1453620A | Stone-drilling machine | |
| US1411405A | Railroad crossing |