Patents
US 11666114 B2: Polyurethane injected boot assembly and associated manufacturing method
- Granted
- 2023-06-06
- Filed
- 2021-02-04 application 17168090
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A footwear assembly having an upper that comprises a neoprene sock with a foot portion integrally connected to a leg portion. The foot portion has heel, vamp and under-foot portions. The leg portion has front shin, side wall, and rear calf-side portions. The upper has a unitary, outer, injection molded layer molded directly onto the foot and shin portions of the neoprene sock, while the sidewall and rear calf-side portions remain substantially uncovered by the injection molded layer. The injection molded layer encases the foot portion of the neoprene sock. The injection molded layer on the shin portion defines a shin guard portion having a necked down area integrally connected to the injection molded layer at the vamp portion, wherein the shin guard extends upwardly from the necked-down portion in an outwardly diverging shape away from the vamp.
Source: PVGPATDIS, file of 2026-04-10 (ipg230606.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| LaCrosse Footwear, Inc. 107 patents | US company or organization | Portland, OR | LACROSSE FOOTWEAR INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| John William Ludemann | Canby, OR | 14 | PVGPATDIS, file of 2026-04-10 | |
| Justin Behnke | Portland, OR | 13 | PVGPATDIS, file of 2026-04-10 | |
| Paul W. Brabson | Portland, OR | 13 | PVGPATDIS, file of 2026-04-10 | |
| Aaron Barker | Portland, OR | 32 | PVGPATDIS, file of 2026-04-10 | |
| Xiaojian Tong | Ningbo City, CN | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A43B | Characteristic features of footwear; parts of footwear | A43B7/12 | PVGPATDIS, file of 2026-04-10 |
| B29D | Producing particular articles from plastics or from substances in a plastic state | B29D35/0009 | 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 |
|---|---|---|---|---|---|
| 2021-04-30 | Assignment Assignment of assignor's interest | BRABSON, PAUL W. signed 2012-12-17 LUDEMANN, JOHN WILLIAM signed 2012-12-17 BARKER, AARON signed 2013-01-02 BEHNKE, JUSTIN signed 2013-01-10 TONG, XIAO JIANG signed 2013-10-01 | LACROSSE FOOTWEAR, INC. PORTLAND, OR | 56098/213 | 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.