| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Canada | 2 | |
| #3 | India | 2 | |
| #4 | United States | 2 | |
| #5 | Argentina | 1 | |
| #6 | Brazil | 1 | |
| #7 | China | 1 | |
| #8 | Czechoslovakia | 1 | |
| #9 | EPO (European Patent Office) | 1 | |
| #10 | Spain | 1 | |
| #11 | United Kingdom | 1 | |
| #12 | Mexico | 1 | |
| #13 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #14 | WIPO (World Intellectual Property Organization) | 1 | |
| #15 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Vehicle transmission mounting | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Knight D J | 6 |
| #2 | Knight David John | 5 |
| #3 | Knight David J | 3 |
| #4 | David John Knight | 1 |
| #5 | Russell Peter J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| SU1669405A3 | Differential gear | |
| EP0276274A1 | Differential gear mechanism. | |
| GB8627862D0 | Differential gear mechanism | |
| AU4634985A | Differential | |
| AR241718A1 | Limited slippage differential for vehicle. | |
| CA1254061A | Differentials |