Patents Assigned to Protherics Salt Lake City, Inc.
  • Biodegradable block copolymeric compositions for drug delivery
    Patent number: 9265836
    Abstract: An improved drug delivery composition and method of use is disclosed. The composition comprises one or more biodegradable block copolymer drug carriers; and a reconstitution enhancing and enabling agent comprising polyethylene glycol (PEG), a PEG derivative or a mixture of PEG and a PEG derivative. The composition can be administered as is or after being be dissolved or rapidly reconstituted in an aqueous vehicle to afford a homogeneous solution or uniform colloidal systems.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 23, 2016
    Assignee: Protherics Salt Lake City, Inc.
    Inventors: Chung Shih, Gaylen M. Zentner
  • Reconstitutable reverse thermal gelling polymers
    Patent number: 9155722
    Abstract: Biodegradable and bioabsorbable block copolymers, which can be in the form of solid powder or powder wax compositions that can be easily reconstituted into an aqueous polymer solution and exhibit reverse thermal gellation properties upon exposure to elevated temperatures, are provided. Methods of making using these copolymers are also provided.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: October 13, 2015
    Assignee: PROTHERICS SALT LAKE CITY, INC.
    Inventors: Kirk D. Fowers, Ramesh C. Rathi, Ai-Zhi Piao
  • BAB triblock polymers having improved release characteristics
    Patent number: 8753621
    Abstract: Improved biodegradable and bioabsorbable BAB-block copolymers exhibiting reverse thermal gellation properties, and aqueous polymer compositions including the BAB-block copolymers, are provided. Methods of making the improved BAB-block copolymers and compositions including the same are also provided.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: June 17, 2014
    Assignee: Protherics Salt Lake City, Inc.
    Inventors: Kirk D. Fowers, Ramesh C. Rathi, Ai-Zhi Piao
  • BIODEGRADABLE BLOCK COPOLYMERIC COMPOSITIONS FOR DRUG DELIVERY
    Publication number: 20140113975
    Abstract: An improved drug delivery composition and method of use is disclosed. The composition comprises one or more biodegradable block copolymer drug carriers; and a reconstitution enhancing and enabling agent comprising polyethylene glycol (PEG), a PEG derivative or a mixture of PEG and a PEG derivative. The composition can be administered as is or after being be dissolved or rapidly reconstituted in an aqueous vehicle to afford a homogeneous solution or uniform colloidal systems.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 24, 2014
    Applicant: PROTHERICS SALT LAKE CITY, INC.
    Inventors: Chung SHIH, Gaylen M. ZENTNER
  • Biodegradable block copolymeric compositions for drug delivery
    Patent number: 8642666
    Abstract: An improved drug delivery composition and method of use is disclosed. The composition comprises one or more biodegradable block copolymer drug carriers; and a reconstitution enhancing and enabling agent comprising polyethylene glycol (PEG), a PEG derivative or a mixture of PEG and a PEG derivative. The composition can be administered as is or after being be dissolved or rapidly reconstituted in an aqueous vehicle to afford a homogeneous solution or uniform colloidal systems.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: February 4, 2014
    Assignee: Protherics Salt Lake City, Inc.
    Inventors: Chung Shih, Gaylen M. Zentner
  • RECONSTITUTABLE REVERSE THERMAL GELLING POLYMERS
    Publication number: 20110071216
    Abstract: Biodegradable and bioabsorbable block copolymers, which can be in the form of solid powder or powder wax compositions that can be easily reconstituted into an aqueous polymer solution and exhibit reverse thermal gellation properties upon exposure to elevated temperatures, are provided. Methods of making using these copolymers are also provided.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 24, 2011
    Applicant: Protherics Salt Lake City, Inc.
    Inventors: Kirk D. FOWERS, Ramesh C. RATHI, Ai-Zhi PIAO
  • BAB TRIBLOCK POLYMERS HAVING IMPROVED RELEASE CHARACTERISTICS
    Publication number: 20110070188
    Abstract: Improved biodegradable and bioabsorbable BAB-block copolymers exhibiting reverse thermal gellation properties, and aqueous polymer compositions including the BAB-block copolymers, are provided. Methods of making the improved BAB-block copolymers and compositions including the same are also provided.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 24, 2011
    Applicant: Protherics Salt Lake City, Inc.
    Inventors: Kirk D. FOWERS, Ramesh C. RATHI, Ai-Zhi PIAO
  • BIODEGRADABLE BLOCK COPOLYMERIC COMPOSITIONS FOR DRUG DELIVERY
    Publication number: 20090264537
    Abstract: An improved drug delivery composition and method of use is disclosed. The composition comprises one or more biodegradable block copolymer drug carriers; and a reconstitution enhancing and enabling agent comprising polyethylene glycol (PEG), a PEG derivative or a mixture of PEG and a PEG derivative. The composition can be administered as is or after being be dissolved or rapidly reconstituted in an aqueous vehicle to afford a homogeneous solution or uniform colloidal systems.
    Type: Application
    Filed: June 24, 2009
    Publication date: October 22, 2009
    Applicant: Protherics Salt Lake City, Inc.
    Inventors: Chung Shih, Gaylen M. Zentner