| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 9 | |
| #2 | United States | 7 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Servomotors | |
| #3 | Venting or aerating devices | |
| #4 | Unspecified technologies | |
| #5 | Metal tempering | |
| #6 | Lubricating | |
| #7 | Milling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pohnert Vladimir G | 7 |
| #2 | Feigel Kurt R Jr | 6 |
| #3 | Feigel Jr Kurt R | 5 |
| #4 | Barker Marcin K | 4 |
| #5 | Bergeson Curt | 2 |
| #6 | Feigel Konrad | 2 |
| #7 | Feigel Jr Kurt | 1 |
| #8 | Feigel Kurt R | 1 |
| #9 | Clarkson Stan | 1 |
| #10 | Barker Marcin | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2970340A1 | Power tong | |
| US2015013855A1 | Laser heat treatment | |
| CA2808708A1 | Shutoff valve | |
| US2014246105A1 | Shutoff valve | |
| CA2743825A1 | Oil catch pan | |
| CA2742881A1 | Tong assemblies | |
| CA2706500A1 | Compact power tong | |
| US6394201B1 | Tubing spider | |
| US6481655B1 | Rotor for a crushing machine | |
| CA2284428A1 | Improved tubing spider | |
| CA2269393A1 | Power tong and backup tong system | |
| CA2016319A1 | Power tongs |