| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | United States | 3 | |
| #3 | Brazil | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Italy | 2 | |
| #6 | Sweden | 2 | |
| #7 | Austria | 1 | |
| #8 | Canada | 1 | |
| #9 | Greece | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes | |
| #3 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Details of furnaces | |
| #2 | Metal production and refining | |
| #3 | Working metallic powder | |
| #4 | Alloys | |
| #5 | Casting metal | |
| #6 | Coating compositions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wentzell Joseph M | 16 |
| #2 | Spera Richard J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GR950100094A | Cuprous sulfide marine antifoulant paint. | |
| US5760103A | Copper marine cladding composition | |
| US4588019A | Methods of controlling solidification of metal baths | |
| BR8306370A | Process to produce ultra fine solid metal particles | |
| ATA387183A | Method for producing ultrafine metal particles | |
| US4431443A | Methods of vacuum arc melting |