Patents
US 12440031 B2: Back support for a chair
- Granted
- 2025-10-14
- Filed
- 2022-09-01 application 17901105
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An office-type chair includes a back support having a support frame, front and rear shells, a cushion and a cover. The perimeter edge of the cover wraps around the side of the cushion and the front shell and is inserted between the front and rear shells to form a finished edge for the cover. The front shell may include a central flex section, and a lumbar pad may be positioned between the front shell and the rear shell and adjacent to the central flex section. One or more lumbar enhancement ribs on the front shell may augment the pressure distribution of the lumbar pad as it is vertically adjusted.
Source: PVGPATDIS, file of 2026-04-10 (ipg251014.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Haworth, Inc. 200 patents | US company or organization | Holland, MI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Mark J. Sherman | Zeeland, MI | 11 | PVGPATDIS, file of 2026-04-10 | |
| William Schroeder | Jenison, MI | 5 | PVGPATDIS, file of 2026-04-10 | |
| Weston Boerckel | Hudsonville, MI | 3 | PVGPATDIS, file of 2026-04-10 | |
| William Reck | Muskegon, MI | 4 | PVGPATDIS, file of 2026-04-10 | |
| Adam VerBeek | Holland, MI | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A47C | Chairs; sofas; beds | A47C7/462 | 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 |
|---|---|---|---|---|---|
| 2026-01-09 | Security interest Security interest Security interest | HAWORTH, INC. signed 2026-01-07 | PNC BANK, NATIONAL ASSOCIATION PITTSBURGH, PA | 74279/827 | PASDL, file of 2026-10-15 |
| 2022-12-01 | Security interest Security interest Collateral assignment of patents | HAWORTH, INC. signed 2022-11-29 AFFORDABLE INTERIOR SYSTEMS, INC. signed 2022-11-29 | PNC BANK PITTSBURGH, PA | 62078/770 | PASDL, file of 2026-10-15 |
| 2022-09-01 | Assignment Assignment of assignor's interest | SHERMAN, MARK signed 2022-08-25 SCHROEDER, WILLIAM signed 2022-08-26 BOERCKEL, WESTON signed 2022-08-25 RECK, WILLIAM signed 2022-08-25 VERBEEK, ADAM signed 2022-08-25 | HAWORTH, INC. HOLLAND, MI | 60964/970 | PASDL, file of 2026-10-15 |
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.