Patents
US 11617973 B2: Filter element
- Granted
- 2023-04-04
- Filed
- 2021-01-25 application 17157440
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A sub-component of a replaceable filter element that is interfacably sealing a standpipe includes an end cap, said second end cap defining a first central opening; a central tube extending from the first central opening of the second end cap, wherein the central tube defines an inner surface, an outer surface and a top surface, wherein the top surface defines a second central opening, wherein the central tube includes an actuator excluding keys, free ends, or projections; and a standpipe seal disposed proximate the top surface of the central tube, wherein the standpipe seal defines a third central opening.
Source: PVGPATDIS, file of 2026-04-10 (ipg230404_r1.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Mann+Hummel Filtration Technology US LLC 19 patents | US company or organization | Gastonia, NC | MANN+HUMMEL FILTRATION TECHNOLOGY US LLC State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Willie L. Stamey, Jr. | Kings Mountain, NC | 25 | PVGPATDIS, file of 2026-04-10 | |
| Mark A. Roll | Bessemer City, NC | 24 | PVGPATDIS, file of 2026-04-10 | |
| Robert H. Ferguson | Gastonia, NC | 7 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D29/21 | 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 |
|---|---|---|---|---|---|
| 2021-09-17 | Name change Change of name | WIX FILTRATION CORP LLC signed 2016-05-04 | MANN+HUMMEL FILTRATION TECHNOLOGY US LLC GASTONIA, NC | 57537/861 | ECORSEXC, file of 2026-09-25 |
| 2021-08-10 | Assignment Assignment of assignor's interest | FERGUSON, ROBERT H. signed 2008-07-29 ROLL, MARK A. signed 2008-07-29 STAMEY, WILLIE L., JR. signed 2008-07-29 | WIX FILTRATION CORP LLC GASTONIA, NC | 57139/432 | 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.