| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 7 | |
| #3 | Germany | 5 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Accessories for machine tools | |
| #2 | Shafts | |
| #3 | Unspecified technologies | |
| #4 | Grinding or polishing devices | |
| #5 | Gearing | |
| #6 | Measuring distances | |
| #7 | Unspecified technologies | |
| #8 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Porath Gordon H | 15 |
| #2 | H Porath Gordon | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US3290065A | Rotary hydraulic fitting | |
| US3223463A | Machine tool spindle | |
| US3145513A | Steady rests | |
| US3231319A | Precision slide | |
| US3183732A | Precision lead screw | |
| US3200671A | Precision quill-type machine tool spindle | |
| US3193334A | Gimbaling system | |
| US3180661A | Rotary hydraulic fitting | |
| CA736307A | Precision lead screw | |
| CA754039A | Precision slide having fluid bearing | |
| CA720195A | Steady rests | |
| CA740782A | Precision quill type machine tool spindle | |
| CA751271A | Machine tool spindle | |
| CA722903A | Gimballing system | |
| CA761333A | Machine tool spindle |