Patents
US 9546113 B2: High porosity/low permeability graphite bodies and process for the production thereof
- Granted
- 2017-01-17
- Filed
- 2012-08-17 application 13588046
- Type
- Utility · 9 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of forming a graphitic carbon body employs compression and resistance heating of a stock blend of a carbon material and a binder material. During molding of the body, resistance heating is accompanied by application of mechanical pressure to increase the density and carbonization of the resulting preform body. The preform can then be subjected to a graphitization temperature to form a graphite article.
Source: PVGPATDIS, file of 2026-04-10 (ipg170117.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| GrafTech International Holdings Inc. 65 patents | US company or organization | Seven Hills, OH | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Chong Chen | Broadview Heights, OH | 14 | PVGPATDIS, file of 2026-04-10 | |
| Philip Dennis Coleman | Avon, OH | 7 | PVGPATDIS, file of 2026-04-10 | |
| Charles Irsak | Olmsted Falls, OH | 2 | PVGPATDIS, file of 2026-04-10 | |
| Greg E. Murray | Parma, OH | 3 | PVGPATDIS, file of 2026-04-10 | |
| James Pavlisin | Cleveland, OH | 3 | PVGPATDIS, file of 2026-04-10 | |
| Paul Stephen Sirocky | Brook Park, OH | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C04B | Lime, magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone ; ceramics ; refractories; treatment of natural stone | C04B35/532 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T428/249967 | 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 |
|---|---|---|---|---|---|
| 2017-10-25 | Assignment Assignment of assignor's interest | GRAFTECH ADVANCED GRAPHITE MATERIALS LLC signed 2017-09-30 | GT ACQUISITION HOLDINGS, LLC ENFIELD, CT | 43943/939 | ECORSEXC, file of 2026-09-25 |
| 2017-10-04 | Release of security interest Release of security interest | JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT signed 2017-09-30 | GRAFTECH ADVANCED GRAPHITE MATERIALS LLC WILMINGTON, DE | 43777/325 | ECORSEXC, file of 2026-09-25 |
| 2016-11-21 | Assignment Assignment of assignor's interest | GRAFTECH INTERNATIONAL HOLDINGS INC. signed 2016-09-30 | GRAFTECH ADVANCED GRAPHITE MATERIALS LLC INDEPENDENCE, OH | 40384/248 | ECORSEXC, file of 2026-09-25 |
| 2015-06-10 | Security interest Security interest Security agreement | FIBER MATERIALS INC. signed 2015-05-22 GRAFTECH INTERNATIONAL HOLDINGS INC. signed 2015-05-22 | JPMORGAN CHASE BANK N.A., AS COLLATERAL AGENT NEW YORK, NY | 35839/754 | ECORSEXC, file of 2026-09-25 |
| 2012-08-20 | Assignment Assignment of assignor's interest | PAVLISIN, JAMES JOSEPH signed 2010-02-08 CHEN, CHONG signed 2010-02-11 COLEMAN, PHILIP D. signed 2010-02-16 IRSAK, CHARLES signed 2010-02-16 MURRAY, GREG E. signed 2010-02-16 SIROCKY, PAUL STEPHEN signed 2010-02-16 | GRAFTECH INTERNATIONAL HOLDINGS INC. PARMA, OH | 28811/443 | 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.