| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 20 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machine tools | |
| #3 | Civil engineering | |
| #4 | Machines | |
| #5 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Working metallic powder | |
| #3 | Unspecified technologies | |
| #4 | Alloys | |
| #5 | Grinding tools | |
| #6 | Soldering, welding and flame cutting | |
| #7 | Turning | |
| #8 | Materials for miscellaneous applications | |
| #9 | Metal-working | |
| #10 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tank Klaus | 20 |
| #2 | Achilles Roy Derrick | 3 |
| #3 | Lloyd Andrew I | 2 |
| #4 | Jonker Cornelis R | 2 |
| #5 | Pipkin Noel J | 2 |
| #6 | Burnand Richard P | 1 |
| #7 | Wai Siu-Wah | 1 |
| #8 | Van Staden Louise Frances | 1 |
| #9 | Tomlinson Peter | 1 |
| #10 | Mastrantonis Nicholas | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4880154A | Brazing |