Patents
US 8720354 B2: Quadfoiler
- Granted
- 2014-05-13
- Filed
- 2012-06-15 application 13524655
- Type
- Utility · 10 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A watercraft having a hull, a mast with sail, an aft rudder and a hydrofoil projecting below the bottom of the hull. The hydrofoil is pivotly connected to the hull enabling the hydrofoil to pitch on a pivot axis which is essentially perpendicular to the longitudinal axis of the hull. The hydrofoils have a vertical part which produces lateral forces to accelerate the boat in turns and resist lateral forces from the sail, and a vertical portion which curves into the horizontal portion which produces vertical lift. The angle of incidence of the hydrofoil is controlled by a sensor arm carrying a trailing sensor.
Source: PVGPATDIS, file of 2026-04-10 (ipg140513.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Hobie Cat Company 17 patents | US company or organization | Oceanside, CA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Gregory Scott Ketterman | Oceanside, CA | 17 | PVGPATDIS, file of 2026-04-10 | |
| James Taylor Czarnowksi | Fallbrook, CA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Jason Christopher Kardas | Vista, CA | 23 | PVGPATDIS, file of 2026-04-10 | |
| Philip James Dow | Oceanside, CA | 18 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B63B | Ships or other waterborne vessels; equipment for shipping | B63B1/242 | PVGPATDIS, file of 2026-04-10 |
| B63H | Marine propulsion or steering | B63H25/382 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-12-11 | Assignment Assignment of assignor's interest | HOBIE CAT IP, LLC signed 2025-10-15 | WHITE RIVER MARINE GROUP, LLC SPRINGFIELD, MO | 73190/954 | PASDL, file of 2026-10-15 |
| 2022-11-23 | Security interest Security interest Security interest | HOBIE CAT COMPANY 11, LLC signed 2022-11-22 HOBIE CAT IP, LLC signed 2022-11-22 | MAYNARDS INDUSTRIES USA LLC, AS AGENT BLOOMFIELD HILLS, MI | 61864/643 | PASDL, file of 2026-10-15 |
| 2022-06-01 | Correction Corrective assignment to correct the assignee address previously recorded at reel: 055411 frame: 0175. assignor(s) hereby confirms the assignment . | HOBIE CAT COMPANY signed 2021-01-26 | HOBIE CAT IP, LLC LIVONIA, MI | 60246/165 | PASDL, file of 2026-10-15 |
| 2021-03-16 | Security interest Security interest Security interest | HOBIE CAT IP, LLC signed 2021-01-26 | CIBC BANK USA, AS ADMINISTRATIVE AGENT CHICAGO, IL | 55610/44 | PASDL, file of 2026-10-15 |
| 2021-02-25 | Assignment Assignment of assignor's interest | HOBIE CAT COMPANY signed 2021-01-26 | HOBIE CAT IP, LLC OCEANSIDE, CA | 55411/175 | PASDL, file of 2026-10-15 |
| 2021-01-28 | Release of security interest Release of security interest | COMMERCE BANK signed 2021-01-26 | HOBIE CAT COMPANY OCEANSIDE, CA | 55071/74 | PASDL, file of 2026-10-15 |
| 2021-01-28 | Release of security interest Release of security interest | COMMERCE BANK signed 2021-01-26 | HOBIE BRANDS INTERNATIONAL, L.C., FORMERLY KNOWN AS HOBIE CAT COMPANY OCEANSIDE, CA | 55071/46 | PASDL, file of 2026-10-15 |
| 2020-04-06 | Security interest Security interest Security interest | HOBIE CAT COMPANY signed 2020-03-31 | COMMERCE BANK ST. LOUIS, MO | 52318/290 | PASDL, file of 2026-10-15 |
| 2016-03-03 | Security interest Security interest Security interest | HOBIE CAT COMPANY signed 2016-02-10 | COMMERCE BANK KANSAS CITY, MO | 37881/92 | PASDL, file of 2026-10-15 |
| 2012-07-10 | Assignment Assignment of assignor's interest | CZARNOWSKI, JAMES TAYLOR signed 2012-06-21 DOW, PHILIP JAMES signed 2012-07-03 KARDAS, JASON CHRISTOPHER signed 2012-07-03 KETTERMAN, GREGORY SCOTT signed 2012-07-03 | HOBIE CAT COMPANY OCEANSIDE, CA | 28520/829 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.