Patents by Inventor George Mihov

George Mihov 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).

  • Publication number: 20160102176
    Abstract: The present invention relates to a fiber comprising a biodegradable polymer which undergoes dimensional change upon injection in the human or animal body wherein the dimensional change is a reduction of the surface area to volume ratio of a factor 2 to 10. The fiber is sized for injection via a pharmaceutical syringe needle having a bore of at least 25 Gauge. The biodegradable polymer is an amorphous biodegradable polymer selected from the group of poly-hex am ethylene carbonates or polyesteramides. The amorphous biodegradable polymer is a preferably a polyesteramide comprising alpha-amino acids, diols and dicarboxylic acids as building blocks. The invention further relates to the use of the fiber for the manufacturing of a medicament for the treatment of ophthalmic diseases. The invention also relates to a process for the manufacturing of the fiber comprising the following process steps; a. extruding a biodegradable polymer into a fiber fitting in a needle of at least 25 Gauge b.
    Type: Application
    Filed: December 18, 2015
    Publication date: April 14, 2016
    Inventors: Astrid FRANKEN, George MIHOV, Jens Christoph THIES
  • Publication number: 20150328374
    Abstract: The invention relates to a coating comprising a biodegradable polymer comprising at least two different functional groups pendant to the polymer backbone, which functional groups are selected from the group of carboxyl-, amine, hydroxyl, ester, amide-, thiol- or thioester groups. The two different functional groups comprise at least an unprotected hydrophilic functional group chosen from a carboxyl-, amine, thiol or hydroxyl group and at least a protected hydrophobic functional group chosen from an ester, amide- or thioester group. The invention further relates to an implantable device comprising the coating composition. The implantable device is includes cardiac pacemakers and defibrillators; leads and electrodes for the preceding, organ stimulators such as nerve, bladder, sphincter and diaphragm stimulators, prostheses, rods, vascular grafts, self-expandable stents, balloon-expandable stents, stent-grafts, grafts, catheters, artificial heart valves and cerebrospinal fluid shunts.
    Type: Application
    Filed: December 20, 2013
    Publication date: November 19, 2015
    Inventors: George MIHOV, John Andrew ZUPANCICH
  • Publication number: 20150240387
    Abstract: The present invention relates to fibers comprising a polyesteramide (PEA) having a chemical formula described by structural formula (IV), wherein m+p varies from 0.9-0.1 and q varies from 0.1 to 0.9, m+p+q=1 whereby m or p could be 0, n is about 5 to about 300; (pref. 50-200), —R1 is independently selected from the group consisting of (C2-C20) alkylene or (C2-C20) alkenylene and combinations thereof; —R3 and R4 in a single backbone unit m or p, respectively, are independently selected from the group consisting of hydrogen, (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, (C6-C10)aryl, —(CH2)SH, —(CH2)2S(CH3), —CH2OH, —CH(OH)CH3, —(CH2)4NH3+, —(CH2)3NHC(?NH2+)NH2, —CH2COOH, —(CH2)COOH, —CH2—CO—NH2, —CH2CH2—CO—NH2, —NH—CH2CH2COOH, CH3—CH2—CH(CH3)—, (CH3)2—CH—CH2—, H2N—(CH2)4—, Ph-CH2—, CH?C—CH2—, HO-p-Ph-CH2—, (CH3)2—CH—, Ph-NH—, NH—(CH2)3—C—, NH—CH?N—CH?C—CH2—.
    Type: Application
    Filed: October 24, 2012
    Publication date: August 27, 2015
    Inventors: Mirian Hendrika Jacoba Gillissen-Van Der Vight, Jens Christoph Thies, George Mihov
  • Publication number: 20150216987
    Abstract: The present invention relates to a drug delivery composition comprising proteins and biodegradable polymers. The present invention further relates to a drug delivery system for controlled and long term release of proteins into a biological environment. The drug delivery composition comprises at least a protein and a biodegradable polymer possessing at least two different functional groups selected from the group of chosen among carboxyl-, ester-, amine-, amide-, thiol-, thioester- or hydroxyl groups pendant to the main polymer chain whereby the composition absorbs between 5-10% w/w water when exposed to physiological conditions for at least 20 days. The present invention further relates to a drug delivery system for controlled protein release comprising the composition. The drug delivery system may be chosen from microparticles, films, coatings, fibers, pellets, cylinders, discs, implants, microcapsules, microspheres, nanospheres, wafers, micelles, liposomes or woven or non-woven fabrics.
    Type: Application
    Filed: October 2, 2013
    Publication date: August 6, 2015
    Inventors: Jens Christoph Thies, George Mihov, Guy Draaisma
  • Publication number: 20140220099
    Abstract: The present invention relates to a poly (ester amide) (PEA) having a chemical formula described by structural formula (IV), wherein m+p varies from 0.9-0.1 and q varies from 0.1 to 0.9 m+p+q=1 whereby m or p could be 0 n is about 5 to about 300; (pref. 50-200) R1 is independently selected from the group consisting of (C2-C20) alkylene, (C2-C20) alkenylene, —(R9—CO—O—R10—O—CO—R9)—, —CHR11—O—CO—R12—COOCR11— and combinations thereof; R3 and R4 in a single backbone unit m or p, respectively, are independently selected from the group consisting of hydrogen, (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, (C6-C10)aryl, (C1-C6)alkyl, —(CH2)SH, —(CH2)2S(CH3), —CH2OH, —CH(OH)CH3, —(CH2)4NH3+, —(CH2)3NHC(?NH2+)NH2, —CH2COOH, —(CH2)COOH, —CH2—CO—NH2, —CH2CH2—CO—NH2, —CH2CH2COOH, CH3—CH2—CH(CH3)—, (CH3)2—CH—CH2—, H2N—(CH2)4—, Ph-CH2—, CH?C—CH2—, HO-p-Ph-CH2—, (CH3)2—CH—, Ph-NH—, NH—(CH2)3—C—, NH—CH?N—CH?C—CH2—.
    Type: Application
    Filed: June 25, 2012
    Publication date: August 7, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Guy Draaisma, George Mihov
  • Publication number: 20140179802
    Abstract: The present invention relates to a fiber comprising a biodegradable polymer which undergoes dimensional change upon injection in the human or animal body wherein the dimensional change is a reduction of the surface area to volume ratio of a factor 2 to 10. The fiber is sized for injection via a pharmaceutical syringe needle having a bore of at least 25 Gauge. The biodegradable polymer is an amorphous biodegradable polymer selected from the group of poly-hexamethylene carbonates or polyesteramides. The amorphous biodegradable polymer is a preferably a polyesteramide comprising alpha-amino acids, diols and dicarboxylic acids as building blocks. The invention further relates to the use of the fiber for the manufacturing of a medicament for the treatment of ophthalmic diseases. The invention also relates to a process for the manufacturing of the fiber comprising the following process steps; a. extruding a biodegradable polymer into a fiber fitting in a needle of at least 25 Gauge b.
    Type: Application
    Filed: May 2, 2012
    Publication date: June 26, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Astrid Franken, George Mihov, Jens Christoph Thies
  • Publication number: 20140120170
    Abstract: The present invention relates to micro- or nanoparticles comprising a polyesteramide (PEA) having a chemical formula described by structural formula (IV), Formula (IV) wherein —m+p varies from 0.9-0.1 and q varies from 0.1 to 0.9 —m+p+q=1 whereby m or p could be 0-n is about 5 to about 300; (pref 50-200) —R1 is independently selected from the group consisting of (C2-C20) alkylene, (C2-C20) alkenylene, —(R9—CO—O—R10—O—CO—R9)—, —CHR11—O—CO—R12—COOCR11— and combinations thereof; —R3 and R4 in a single backbone unit m or p, respectively, are independently selected from the group consisting of hydrogen, (C1C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, (C6-C10)aryl, (C1-C6)alkyl, —(CH2)SH, —(CH2)2S(CH3), —CH2OH, —CH(OH)CH3, —(CH2)4NH3+, —(CH2)3NHC(?NH2+)NH2, —CH2COOH, —(CH2)COOH, —CH2—CO—NH2, —CH2CH2—CO—NH2, —CH2CH2COOH, CH3—CH2—CH(CH3)—, (CH3)2—CH—CH2—, H2N—(CH2)4—, Ph-CH2—, CH?C—CH2—, HO-p-Ph-CH2—, (CH3)2—CH—, Ph-NH—, NH—(CH2)3—C—, NH—CH?N—CH?C—CH2—.
    Type: Application
    Filed: June 25, 2012
    Publication date: May 1, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: George Mihov, John Andrew Zupancich
  • Publication number: 20140105957
    Abstract: The present invention relates to an ocular polymer delivery composition comprising at least one ophthalmologic agent dispersed in at least one biodegradable polymer, wherein the polymer comprises at least one of a poly (ester amide) (PEA) having a chemical formula described by structural formula (I).
    Type: Application
    Filed: May 2, 2012
    Publication date: April 17, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Astrid Franken, George Mihov, Jens Christoph Thies
  • Publication number: 20120282299
    Abstract: The present invention relates to a coating comprising at least one biodegradable polymer, wherein the polymer comprises at least one or a blend of a poly (ester amide) (PEA) having a chemical formula described by structural formula (II), wherein; R1 is independently selected from the group consisting of (C2-C20)alkylene, (C2-C20)alkenylene, —(R9—CO—O—R10—O—CO—R9)—, CHR11—O—CO—R12—COOCR11— and combinations thereof; R3 and R4 in a single co-monomer m or p, respectively, are independently selected from the group consisting of hydrogen, (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl, (C6-C10)aryl, (C1C6)alkyl, —(CH2)SH, —(CH2)2S(CH3), CH2OH, —CH(OH)CH3, —(CH2)4NH3+, ˜(CH2)3NHC(?NH2+)NH2, —CH2COOH, (CH2)COOH, —CH2—CO—NH2—CH2CH2—CO—NH2, —CH2CH2COOH, CH3—CH2—CH(CH3)—, formula (a), HO—P-Ph-CH2—, (CH3)2—CH—, Ph-NH—, NH—(CH2)3—C—, NH—CH?N—CH?C—CH2—.
    Type: Application
    Filed: October 18, 2010
    Publication date: November 8, 2012
    Inventors: Soazig Claude Marie Delamarre, George Mihov, Astrid Franken, Kenneth Alan Messier
  • Publication number: 20120177703
    Abstract: The present invention relates to linear oligo- or poly-?-caprolactones di-blockcopolymers, in solid form at room temperature, comprising monoalkyl oligoethyleneglycol residues. The present invention further relates to a drug delivery formulation comprising above materials and a process for the preparation of the drug delivery formulation. The oligoethyleneglycol residues are preferably selected from the group consisting of methyl diethylene glycol, methyl triethyleneglycol or methyl tetraethylene glycol. The oligo- or poly-?-caprolactone derivatives are prepared via the reaction of mono-hydroxy-oligoethyleneglycol with ?-caprolactone, whereby the mono-hydroxy-oligoethyleneglycol acts as an initiator.
    Type: Application
    Filed: July 9, 2010
    Publication date: July 12, 2012
    Inventors: George Mihov, Guy Draaisma