Patents
US 12708867 B2: Filter apparatus with vented core, electrostatic discharge mitigation, or both
- Granted
- 2026-08-18
- Filed
- 2021-11-16 application 17527870
- Type
- Utility · 8 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Described are liquid filter apparatuses that include a housing, an interior within the housing, a cartridge assembly (otherwise known as a “filter cartridge”) contained within the housing, and a vent that allows gaseous fluid from an interior of the housing to be released to an exterior of the housing, or that include an electrostatic charge mitigation feature, as well as related methods.
Source: PTBLXML, file of 2026-08-18 (ipgb20260818.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| ENTEGRIS, INC. 666 patents | US company or organization | Billerica, MA | ENTEGRIS, INC. Federal lobbying client EXACT high confidence: identical full name and state ENTEGRIS INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PTBLXML, file of 2026-08-18 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Barry L. Gregerson | Deephaven, MN | PTBLXML, file of 2026-08-18 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D29/11 | PTBLXML, file of 2026-08-18 |
| H10P | Generic processes or apparatus for the manufacture or treatment of devices covered by class h10 | H10P72/0402 | PTBLXML, file of 2026-08-18 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-07-08 | Security interest Security interest Security interest | ENTEGRIS, INC. signed 2022-07-06 ENTEGRIS GP, INC. signed 2022-07-06 POCO GRAPHITE, INC. signed 2022-07-06 | MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT BALTIMORE, MD | 60614/980 | PASDL, file of 2026-10-15 |
| 2022-07-08 | Security interest Security interest Security interest | ENTEGRIS, INC. signed 2022-07-06 ENTEGRIS GP, INC. signed 2022-07-06 POCO GRAPHITE, INC. signed 2022-07-06 CMC MATERIALS, INC. signed 2022-07-06 INTERNATIONAL TEST SOLUTIONS, LLC signed 2022-07-06 QED TECHNOLOGIES INTERNATIONAL, INC. signed 2022-07-06 | TRUIST BANK, AS NOTES COLLATERAL AGENT WILSON, NC | 60613/72 | PASDL, file of 2026-10-15 |
| 2021-11-16 | Assignment Assignment of assignor's interest | GREGERSON, BARRY L. signed 2021-04-14 | ENTEGRIS, INC. BILLERICA, MA | 58128/983 | PASDL, file of 2026-08-13 |
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.