Patents
US 12677952 B2: Seat back for an office chair
- Granted
- 2026-07-14
- Filed
- 2024-01-19 application 18417096
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A seat back for an office chair is efficiently manufactured and assembled. The seat back includes a tensioner for tensioning a flexible support on the structural frame. The tensioner is connected between the lower edge of the flexible support and the upright members of the frame such that the tensioner stretches the flexible support between the upper and lower edges of the flexible support and maintains the flexible support in tension on the structural frame. An armrest mount may be formed integrally with each of the upright members of the structural frame, and an armrest housing vertically adjustably mounted to each of the armrest mounts. An activation mechanism is positioned adjacent to the lower end of the armrest housing, and is connected to a lock element such that movement of the activation mechanism toward the upper end of the housing causes the lock element to move to an unlocked position.
Source: PTBLXML, file of 2026-07-14 (ipgb20260714.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Haworth, Inc. 200 patents | US company or organization | Holland, MI | PTBLXML, file of 2026-07-14 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Craig Brekke | Rockford, MI | PTBLXML, file of 2026-07-14 | ||
| William Reck | Holland, MI | 4 | PTBLXML, file of 2026-07-14 | |
| Jacob Cammenga | Hudsonville, MI | PTBLXML, file of 2026-07-14 | ||
| Weston Boerckel | Hudsonville, MI | 3 | PTBLXML, file of 2026-07-14 | |
| Andras Kupfermann | Grand Rapids, MI | PTBLXML, file of 2026-07-14 | ||
| Angelina Lullie | Chicago, IL | PTBLXML, file of 2026-07-14 | ||
| Mark J. Sherman | Zeeland, MI | 11 | PTBLXML, file of 2026-07-14 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A47C | Chairs; sofas; beds | A47C7/462 | PTBLXML, file of 2026-07-14 |
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 |
| 2024-01-19 | Assignment Assignment of assignor's interest | BREKKE, CRAIG signed 2024-01-03 RECK, WILLIAM signed 2024-01-04 CAMMENGA, JACOB signed 2024-01-02 BOERCKEL, WESTON signed 2023-12-20 KUPFERMANN, ANDRAS signed 2024-01-04 LULLIE, ANGELINA signed 2024-01-15 SHERMAN, MARK J. signed 2024-01-18 | HAWORTH, INC. HOLLAND, MI | 66181/236 | 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.