| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 2 | |
| #2 | Argentina | 1 | |
| #3 | Australia | 1 | |
| #4 | Belgium | 1 | |
| #5 | Brazil | 1 | |
| #6 | Germany | 1 | |
| #7 | Denmark | 1 | |
| #8 | France | 1 | |
| #9 | Greece | 1 | |
| #10 | Israel | 1 | |
| #11 | Italy | 1 | |
| #12 | Jordan | 1 | |
| #13 | Luxembourg | 1 | |
| #14 | Morocco | 1 | |
| #15 | Netherlands | 1 | |
| #16 | Norway | 1 | |
| #17 | African Intellectual Property Organization | 1 | |
| #18 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hilfiker Arthur L | 11 |
| #2 | Hilfiker Harold K | 11 |
| #3 | Hilfiker H K | 2 |
| #4 | Hilfiker A L | 2 |
| #5 | Hilfiker Harold Kent | 1 |
| #6 | Hilfiker William Kent | 1 |
| #7 | Hilfiker Arthur Lee | 1 |
| #8 | Harold K Hilfiker | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JO1294B1 | wire retaining wall apparatus and method for earthing formations | |
| GB8309866D0 | Method of and apparatus for retaining earth formations |