HARLSTONE SA has a total of 12 patent applications. Its first patent ever was published in 1995. It filed its patents most often in Bulgaria, Brazil and Czechia. Its main competitors in its focus markets engines, pumps and turbines and environmental technology are MICHEL KADENACY, THERY GEORGES and ULYANOVSKIJ NI N PROIZV OBEDIN.
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Climate change mitigation in transportation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dale Thomas W | 12 |
| Publication | Filing date | Title |
|---|---|---|
| MX9603743A | Spherical piston radial action engine. | |
| NZ283069A | Rotary ic engine has spherical pistons rolling on annular cam ring |