Patents
US 10675602 B2: Spray-drying process
- Granted
- 2020-06-09
- Filed
- 2019-05-07 application 16405777
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The process comprises delivering a spray solution comprising an active agent and a matrix material in an organic solvent to a spray-drying apparatus, atomizing the spray solution into droplets within the spray-drying apparatus to remove at least a portion of the organic solvent from the droplets to form a plurality of particles, and collecting the particles. The spray solution may be formed by forming a feed suspension comprising the active agent, the matrix material, and the organic solvent, wherein the feed suspension is at a temperature T1, and directing the feed suspension to a heat exchanger, thereby increasing the temperature of the feed suspension to a temperature T2, wherein T2 is greater than T1, and the spray solution is at a pressure greater than the vapor pressure of the organic solvent at T2, such that the active agent and matrix material are soluble in the organic solvent at T2.
Source: PVGPATDIS, file of 2026-04-10 (ipg200609.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Bend Reserch, Inc. 62 patents | US company or organization | Bend, OR | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Dwayne T. Friesen | Bend, OR | 38 | Person page FUZZY medium confidence | PVGPATDIS, file of 2026-04-10 |
| David D. Newbold | Bend, OR | 11 | PVGPATDIS, file of 2026-04-10 | |
| John M. Baumann | Bend, OR | 8 | PVGPATDIS, file of 2026-04-10 | |
| Devon B. DuBose | Bend, OR | 6 | PVGPATDIS, file of 2026-04-10 | |
| Douglas L. Millard | Bend, OR | 12 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J2/04 | 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 |
|---|---|---|---|---|---|
| 2023-02-02 | Name change Change of name | BEND RESEARCH, INC. signed 2023-01-01 | LONZA BEND INC. BEND, OR | 62971/292 | PASDL, file of 2026-10-15 |
| 2019-05-07 | Assignment Assignment of assignor's interest | FRIESEN, DWAYNE T. signed 2010-04-01 BAUMANN, JOHN M. signed 2010-04-02 DUBOSE, DEVON B. signed 2010-04-02 MILLARD, DOUGLAS L. signed 2010-04-02 NEWBOLD, DAVID D. signed 2010-04-02 | BEND RESEARCH, INC. BEND, OR | 49106/340 | 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.