| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | Germany | 2 | |
| #3 | United States | 2 | |
| #4 | Ireland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines | |
| #3 | Environmental technology | |
| #4 | Chemical engineering | |
| #5 | Textiles and paper |
| # | Name | Total Patents |
|---|---|---|
| #1 | Horace Freeman | 2 |
| #2 | Freeman Horace | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB831006A | Iron oxide reduction | |
| GB768018A | Improvements in or relating to the reduction of iron oxide | |
| US2792298A | Iron oxide reduction | |
| US2726950A | Preparation of finely divided metal powders | |
| IE12112L | Iron metallurgy | |
| GB374486A | Process of making iron oxide and sulphur dioxide from iron sulphide ores | |
| GB211488A | Improvements in and relating to the manufacture of sodium sulphide |