IP Library › Granted Patent US 8,822,687
Granted Patent B2
US 8,822,687 · App. 12/711,948 · Granted Sep 2, 2014

8a,14-dihydroxy-7,8-dihydrocodeinone

Inventors: Robert Chapman (North Kingstown, RI); Lonn S. Rider (Foster, RI); Qi Hong (Sharon, MA); Donald Kyle (Newtown, PA); Robert Kupper (Coventry, RI)
Assignees: Purdue Pharma L.P.; The P.F. Laboratories, Inc.; Purdue Pharmaceuticals L.P.; Rhodes Technologies
C07D489/08C07D489/02
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Quick Facts
Patent No.
US 8,822,687
App. No.
12/711,948
Granted
Sep 2, 2014
Kind
B2
Abstract

8α,14-Dihydroxy-7,8-dihydrocodeinone is described.

Claims (1)

1. Isolated 8α,14-dihydroxy-7,8-dihydrocodeinone.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2019
From: THE P.F. LABORATORIES, INC.; PURDUE PHARMA TECHNOLOGIES, INC.
To: PURDUE PHARMA L.P.
Reel/Frame 048936/0093 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2010
From: PURDUE PHARMA L.P.
To: PURDUE PHARMA L.P.; P.F. LABORATORIES, INC. THE; PURDUE PHARMACEUTICALS L.P.; RHODES TECHNOLOGIES
Reel/Frame 024384/0738 →
Continuity (9)
Division 11729741 · Mar 29, 2007
Continuation 11391897 · Mar 29, 2006
Continuation 11093626 · Mar 30, 2005
Provisional Application 60557492 · Mar 30, 2004
Provisional Application 60601534 · Aug 13, 2004
Provisional Application 60620072 · Oct 18, 2004
Provisional Application 60648625 · Jan 31, 2005
Provisional Application 60651778 · Feb 10, 2005
Related Publication 20100152449A1 · Jun 17, 2010