| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Furniture and games | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Ships | |
| #3 | Footwear features | |
| #4 | Physical training equipment | |
| #5 | Skates |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lekhtman David | 11 |
| #2 | Lekhtman Gregory | 2 |
| #3 | Lekhtman Leon | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2008176465A1 | Watercraft having low cavitation drive | |
| US2010223810A1 | Outer sole having resilient mid-sole with floating hinges | |
| CA2136394A1 | Water sporting equipment | |
| CA1325647C | Water sport equipment | |
| CA1311255C | Cross-country ski climbing device | |
| US4844501A | Cross-country ski climbing device | |
| US4708076A | Water sport equipment | |
| US4492374A | Sporting and exercising spring shoe |