Patents
US 8614346 B2: Methods and compositions for preparation of amphetamine conjugates and salts thereof
- Granted
- 2013-12-24
- Filed
- 2010-06-18 application 13378176
- Type
- Utility · 24 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The invention provides methods and compositions for preparing amphetamine conjugates, such as lisdexamfetamine, homoarginine-D-amphetamine, and salts thereof. In one embodiment, the invention provides methods of preparing an amphetamine conjugate from a chloramphetamine intermediate.
Source: PVGPATDIS, file of 2026-04-10 (ipg131224.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| CAMBREX CHARLES CITY, INC. 9 patents | US company or organization | Charles City, IA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Paul Jass | Peculiar, MO | 4 | PVGPATDIS, file of 2026-04-10 | |
| Todd J. Johnson | Olds, IA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Jason Scott Douglas | Charles City, IA | 2 | PVGPATDIS, file of 2026-04-10 | |
| Matthew Wendell Schiesher | Charles City, IA | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C07C | Acyclic or carbocyclic compounds | C07C237/06 | 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 |
|---|---|---|---|---|---|
| 2025-04-11 | Security interest Security interest Assignment and assumption of intellectual property security agreement | ARES AGENT SERVICES, L.P., AS FORMER AGENT signed 2025-04-11 | BLUE OWL CAPITAL CORPORATION, AS NEW AGENT NEW YORK, NY | 70821/302 | ECORSEXC, file of 2026-09-25 |
| 2025-03-06 | Release of security interest Release of first lien security interest in patents | ROYAL BANK OF CANADA signed 2025-03-06 | AVISTA PHARMA SOLUTIONS, INC. EAST RUTHERFORD, NJ CAMBREX CHARLES CITY, INC. EAST RUTHERFORD, NJ SNAPDRAGON CHEMISTRY, INC. EAST RUTHERFORD, NJ | 70438/333 | ECORSEXC, file of 2026-09-25 |
| 2025-03-06 | Security interest Security interest Security interest | CAMBREX CHARLES CITY, INC. signed 2025-03-06 | ARES AGENT SERVICES, L.P., AS COLLATERAL AGENT NEW YORK, NY | 70421/947 | ECORSEXC, file of 2026-09-25 |
| 2020-12-07 | Release of security interest Release of second lien security interest in patents | ROYAL BANK OF CANADA, AS COLLATERAL AGENT signed 2020-12-07 | AVISTA PHARMA SOLUTIONS, INC. DURHAM, NC | 54630/307 | ECORSEXC, file of 2026-09-25 |
| 2019-12-04 | Release of security interest Notice of release of security interest in patents | WELLS FARGO BANK, NATIONAL ASSOCIATION signed 2019-12-04 | CAMBREX CHARLES CITY, INC. CHARLES CITY, IA | 51283/903 | ECORSEXC, file of 2026-09-25 |
| 2019-12-04 | Security interest Security interest First lien patent security agreement | AVISTA PHARMA SOLUTIONS, INC. signed 2019-12-04 CAMBREX CHARLES CITY, INC. signed 2019-12-04 | ROYAL BANK OF CANADA, AS COLLATERAL AGENT TORONTO | 51283/877 | ECORSEXC, file of 2026-09-25 |
| 2019-12-04 | Security interest Security interest Second lien patent security agreement | AVISTA PHARMA SOLUTIONS, INC. signed 2019-12-04 CAMBREX CHARLES CITY, INC. signed 2019-12-04 | ROYAL BANK OF CANADA, AS COLLATERAL AGENT TORONTO | 51196/80 | ECORSEXC, file of 2026-09-25 |
| 2019-01-03 | Security interest Security interest Security interest | CAMBREX CHARLES CITY, INC. signed 2019-01-02 | WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT CHARLOTTE, NC | 47895/53 | 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.