| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Germany | 2 | |
| #3 | Norway | 2 | |
| #4 | United States | 2 | |
| #5 | Canada | 1 | |
| #6 | Denmark | 1 | |
| #7 | Spain | 1 | |
| #8 | Finland | 1 | |
| #9 | France | 1 | |
| #10 | India | 1 | |
| #11 | Italy | 1 | |
| #12 | Japan | 1 | |
| #13 | Netherlands | 1 | |
| #14 | Portugal | 1 | |
| #15 | Sweden | 1 | |
| #16 | Turkey | 1 | |
| #17 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Foundry moulding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hoult Frederick Herbert | 7 |
| #2 | Hoult Frederick H | 2 |
| #3 | Furederitsuku Haabaato Hooruto | 1 |
| #4 | Hoult F | 1 |
| #5 | Hoult Frederich Herbert | 1 |
| #6 | Hoult F H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2738114A1 | Foundry sand mould prodn. - uses compacted mixt. of sand and water which has surface layers frozen by cold air, liquefied gas spray or dry ice | |
| GB1537743A | Methods of casting and sand moulds therefor | |
| GB1537471A | Foundry mould production | |
| GB1525707A | Casting metals |