Patents
US 8465683 B2: Agglomerated stover for use as a liquid absorbent
- Granted
- 2013-06-18
- Filed
- 2011-08-22 application 13214761
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
This disclosure describes a method and apparatus for agglomerating stover to produce a liquid absorbing particle. The method comprises providing stover particles coated with a first binder component and then rolling the stover particles coated with the first binder component on a rotating surface. The rotating surface is inclined sufficiently to aid in the rolling of the stover particles. A second liquid binder component that readily chemically crosslinks with the first binder component is applied to the first binder component to produce a web that the stover particles adhere to. The web in combination with the inclined rotating surface rolls the stover particles thereby forming an agglomerated stover particle that will be suitable for absorbing liquids. Agglomerated stover particles are also described.
Source: PVGPATDIS, file of 2026-04-10 (ipg130618.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Regents of the University of Minnesota 1,376 patents | US company or organization | Windom, MN | PVGPATDIS, file of 2026-04-10 | |
| Clean Plus, Inc. 1 patents | US company or organization | Concord, MN | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Tim Hagen | Superior, WI | 1 | PVGPATDIS, file of 2026-04-10 | |
| George J. Coy | Mantorville, MN | 1 | PVGPATDIS, file of 2026-04-10 | |
| Matthew Coy | Mantorville, MN | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B29C | Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairing | B29C67/02 | PVGPATDIS, file of 2026-04-10 |
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J20/28011 | PVGPATDIS, file of 2026-04-10 |
| C09K | Materials for miscellaneous applications, not provided for elsewhere | C09K3/32 | PVGPATDIS, file of 2026-04-10 |
| B29K | Indexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for ; moulds, ; reinforcements, fillers or preformed parts, e.g. inserts | B29K2003/00 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T428/2982 | 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 |
|---|---|---|---|---|---|
| 2011-08-22 | Assignment Assignment of assignor's interest | COY, GEORGE J. signed 2011-08-19 COY, MATTHEW D. signed 2011-08-19 HAGEN, TIM signed 2011-08-22 | REGENTS OF THE UNIVERSITY OF MINNESOTA ST. PAUL, MN CLEAN PLUS, INC. CONCORD, MN | 26785/870 | 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.