Patents
US 8905037 B2: Enhanced subjective activated carbon cigarette
- Granted
- 2014-12-09
- Filed
- 2009-10-15 application 12579596
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A smoking article having a tobacco rod and a filter attached to the tobacco rod, which filters the first puff differently than subsequent puffs. The tobacco rod includes an inner rod of tobacco material having an impervious outer wrap and an impervious cap at an upstream end thereof and an outer rod of tobacco material, wherein the inner rod of tobacco material is concentrically positioned with respect to the outer rod of tobacco material. The filter includes an outer cellulose acetate filter and an inner activated carbon filter, wherein the inner activated carbon filter is concentrically positioned with respect to the outer cellulose acetate filter.
Source: PVGPATDIS, file of 2026-04-10 (ipg141209.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Philip Morris Inc. 1 patents | US company or organization | Richmond, VA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Peter Lipowicz | Midlothian, VA | 86 | PVGPATDIS, file of 2026-04-10 | |
| Firooz Rasouli | Midlothian, VA | 33 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A24D | Cigars; cigarettes; tobacco smoke filters; mouthpieces of cigars or cigarettes; manufacture of tobacco smoke filters or mouthpieces | A24D1/00 | 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 |
|---|---|---|---|---|---|
| 2010-05-27 | Assignment Assignment of assignor's interest | LIPOWICZ, PETER signed 2010-01-14 RASOULI, FIROOZ signed 2010-05-25 | PHILIP MORRIS USA INC. RICHMOND, VA | 24449/470 | 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.