| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Spark gaps and corona devices | |
| #2 | Ignition for internal-combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Farrell Mark | 11 |
| #2 | Ruda Harry E | 7 |
| #3 | Farrell Richard | 6 |
| #4 | Herriges Thomas L | 1 |
| #5 | Sim Robert Keith | 1 |
| #6 | Fernandes Carlos | 1 |
| #7 | Neame Ghabi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2018031563A1 | Spark plug and manufacturing method thereof | |
| CN106797108A | Improved spark plug | |
| US2014354137A1 | Spark plug | |
| CA2879333A1 | Spark plug construction |