| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | Italy | 2 | |
| #4 | United States | 2 | |
| #5 | Switzerland | 1 | |
| #6 | Spain | 1 | |
| #7 | France | 1 | |
| #8 | Japan | 1 | |
| #9 | Sweden | 1 | |
| #10 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Grinding or polishing devices | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Turning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Henninghaus Franz | 4 |
| #2 | Henninghaus F | 2 |
| #3 | Furantsu Heninguhausu | 1 |
| #4 | Henninghaus Ferdinand | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2715945A1 | DEVICE FOR CYLINDER INTERNAL MACHINING | |
| DE2659766A1 | HON TOOL |