Patents by Inventor Didier R. Lefebvre

Didier R. Lefebvre has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Delivery system for sustained release of a calcium-channel blocking agent
    Patent number: 9060986
    Abstract: A delivery system for sustained release of a calcium-channel blocking agent is adapted for introduction in the cerebrospinal fluid of a subject. The delivery system comprises a solid dispersion product of a calcium-channel blocking agent in a mixture of a (i) first poly(lactide-co-glycolide) having a molecular weight distribution centered around a first number average molecular weight Mn1 and a (ii) second poly(lactide-co-glycolide) having a molecular weight distribution centered around a second number average molecular weight Mn2, wherein Mn1 is in the range of from 2000 to 3000 g/mol and the ratio of Mn1/Mn2 is from 1.8 to 3.5. The delivery system is deposited in the vicinity of or adjacent to a blood vessel showing vasospasm or suspected of developing vasospasm.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: June 23, 2015
    Assignee: BDS Pharma GmbH
    Inventors: Jorg Breitenbach, Bernd Liepold, Didier R. Lefebvre, Steffen Bossmann, Benedikt Steitz, Peter Hölig
  • DELIVERY SYSTEM FOR SUSTAINED RELEASE OF A CALCIUM-CHANNEL BLOCKING AGENT
    Publication number: 20120252851
    Abstract: A delivery system for sustained release of a calcium-channel blocking agent is adapted for introduction in the cerebrospinal fluid of a subject. The delivery system comprises a solid dispersion product of a calcium-channel blocking agent in a mixture of a (i) first poly(lactide-co-glycolide) having a molecular weight distribution centered around a first number average molecular weight Mn1 and a (ii) second poly(lactide-co-glycolide) having a molecular weight distribution centered around a second number average molecular weight Mn2, wherein Mn1 is in the range of from 2000 to 3000 g/mol and the ratio of Mn1/Mn2 is from 1.8 to 3.5. The delivery system is deposited in the vicinity of or adjacent to a blood vessel showing vasospasm or suspected of developing vasospasm.
    Type: Application
    Filed: October 5, 2010
    Publication date: October 4, 2012
    Inventors: Jorg Breitenbach, Bernd Liepold, Didier R. Lefebvre, Steffen Bossmann, Benedikt Steitz, Peter Hölig
  • Method of separating and handling a thin semiconductor die on a wafer
    Patent number: 6772509
    Abstract: A method of separating a thin die (20, 60) from a support body (72) of a semiconductor wafer (70). The thin die (20, 60) being initially attached to the support body (72) by an attachment mechanism (78, 178). The attachment mechanism may be a plurality of tethers (78, 178) that extend between the thin die (20, 60) and the support body (72).
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: August 10, 2004
    Assignee: Motorola, Inc.
    Inventors: Shiuh-Hui Steven Chen, Cheryl Field, Didier R. Lefebvre, Joe Pin Wang
  • Method of separating and handling a thin semiconductor die on a wafer
    Publication number: 20030140486
    Abstract: A method of separating a thin die (20, 60) from a support body (72) of a semiconductor wafer (70). The thin die (20, 60) being initially attached to the support body (72) by an attachment mechanism (78, 178). The attachment mechanism may be a plurality of tethers (78, 178) that extend between the thin die (20, 60) and the support body (72).
    Type: Application
    Filed: January 28, 2002
    Publication date: July 31, 2003
    Inventors: Shiuh-Hui Steven Chen, Cheryl Field, Didier R. Lefebvre, Joe Pin Wang