| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | Switzerland | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Alloys | |
| #2 | Metal production and refining |
| # | Name | Total Patents |
|---|---|---|
| #1 | Judy Wilbur H | 4 |
| #2 | Sumet Corporation | 2 |
| #3 | Rother Willard H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2246067A | Alloy | |
| US1611043A | Metallic composition | |
| DE442794C | Improvement of the alloys of lead | |
| GB228345A | Improvements in and relating to metallic compositions containing lead | |
| GB231279A | Method of purifying metals and an apparatus for carrying out the same | |
| US1686277A | Metallic composition and process for making the same | |
| CA265935A | Lead purifier | |
| CA266579A | Metallic composition |