Patents
US 12503914 B2: Ladders and hinge for ladders
- Granted
- 2025-12-23
- Filed
- 2021-02-19 application 17180156
- Type
- Utility · 6 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Ladders and ladder components are described herein, including multipurpose and adjustable ladders. In one embodiment, a ladder includes a first assembly having rails and rungs, a second assembly having rails and rungs, and one or more hinges coupling the first and second assemblies together such that the first and second assembly may be positioned relative to one another in at least a position or state and at least a second position or state. The ladder is adjustable by moving a pin from a locked state in which it is located in a recess or slot of the hinges and prevents rotation of the hinges to an unlocked state in which it is removed from the recess or slot. Multiple joints can be simultaneously transitioned between locked and unlocked states using a releaser to move the pin, and a spring can bias the pin into a locked state.
Source: PVGPATDIS, file of 2026-04-10 (ipg251223.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| LITTLE GIANT LADDER SYSTEMS, LLC 57 patents | US company or organization | Springville, UT | LITTLE GIANT LADDER SYSTEMS, LLC Federal lobbying client EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| B. Scott Maxfield | Mapleton, UT | 22 | PVGPATDIS, file of 2026-04-10 | |
| N. Ryan Moss | Mapleton, UT | 85 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E06C | Ladders | E06C7/50 | 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 |
|---|---|---|---|---|---|
| 2026-02-10 | Security interest Security interest Security interest | LITTLE GIANT LADDER SYSTEMS, LLC signed 2020-12-28 | PNC BANK, NATIONAL ASSOCIATION, AS AGENT PITTSBURGH, PA | 74720/778 | PASDL, file of 2026-10-15 |
| 2026-01-20 | Assignment Assignment of assignor's interest | MAXFIELD, B. SCOTT signed 2026-01-09 MOSS, N. RYAN signed 2026-01-09 | LITTLE GIANT LADDER SYSTEMS, LLC SPRINGVILLE, UT | 73521/283 | 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.