Patents
US 9513005 B2: Intelligent oxygen level controller for biofuel-fired burner
- Granted
- 2016-12-06
- Filed
- 2014-08-15 application 14460782
- Type
- Utility · 9 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A controller monitors oxygen levels in a bio-fuel fired device and automatically controls dampers, blowers and the like to reduce generation of smoke or other pollutants, thereby promoting proper operation of a catalytic converter.
Source: PVGPATDIS, file of 2026-04-10 (ipg161206.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Biomass Controls, LLC 5 patents | US company or organization | Putnam, CT | BIOMASS CONTROLS, 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 |
|---|---|---|---|---|
| John Schneider | Pomfret, CT | 4 | PVGPATDIS, file of 2026-04-10 | |
| Matt Fraga | Hebron, CT | 3 | PVGPATDIS, file of 2026-04-10 | |
| Eric Dithrich | Brimfield, MA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Jeffrey R. Hallowell | Woodstock, CT | 10 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F23N | Regulating or controlling combustion | F23N3/085 | PVGPATDIS, file of 2026-04-10 |
| B01D | Separation | B01D53/8696 | PVGPATDIS, file of 2026-04-10 |
| F23B | Methods or apparatus for combustion using only solid fuel | F23B90/08 | PVGPATDIS, file of 2026-04-10 |
| F23G | Cremation furnaces; consuming waste products by combustion | F23G5/00 | PVGPATDIS, file of 2026-04-10 |
| G05B | Control or regulating systems in general; functional elements of such systems; monitoring or testing arrangements for such systems or elements | G05B13/00 | 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 |
|---|---|---|---|---|---|
| 2019-05-30 | Name change Change of corporate organization | BIOMASS CONTROLS, LLC signed 2019-05-14 | BIOMASS CONTROLS PBC PUTNAM, CT | 49327/518 | ECORSEXC, file of 2026-09-25 |
| 2016-04-08 | Assignment Assignment of assignor's interest | CLEARSTAK LLC signed 2016-04-06 | BIOMASS CONTROLS, LLC PUTNAM, CT | 38228/253 | ECORSEXC, file of 2026-09-25 |
| 2015-03-30 | Assignment Assignment of assignor's interest | DITHRICH, ERIC signed 2014-12-12 FRAGA, MATT signed 2014-12-12 HALLOWELL, JEFFREY R. signed 2014-12-12 SCHNEIDER, JOHN signed 2014-12-12 | CLEARSTAK LLC WOODSTOCK, CT | 35285/499 | 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.