Patents Assigned to Bezwada Biomedical, LLC
  • Patent number: 10689330
    Abstract: The present invention relates to the discovery of new class of hydrolysable amino acid derivatives and absorbable polyester amides, polyamides, polyepoxides, polyureas and polyurethanes prepared therefrom. The resultant absorbable polymers are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention, bone wax formulations, medical device coatings, stents, stent coatings, highly porous foams, reticulated foams, wound care, cardiovascular applications, orthopedic devices, surface modifying agents and other implantable medical devices. In addition, these absorbable polymers should have a controlled degradation profile.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: June 23, 2020
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S. Bezwada
  • Patent number: 10550072
    Abstract: The present invention relates to the discovery of new class of hydrolysable amino acid derivatives and absorbable polyester amides, polyamides, polyepoxides, polyureas and polyurethanes prepared therefrom. The resultant absorbable polymers are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention, bone wax formulations, medical device coatings, stents, stent coatings, highly porous foams, reticulated foams, wound care, cardiovascular applications, orthopedic devices, surface modifying agents and other implantable medical devices. In addition, these absorbable polymers should have a controlled degradation profile.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: February 4, 2020
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Patent number: 9328192
    Abstract: Described are novel ricinoleic acid/12-hydroxy stearic acid-based diisocyanates, which are useful as monomers to form polymers, which have applications inter alia as medical devices.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: May 3, 2016
    Assignee: Bezwada Biomedical, LLC
    Inventors: Rao S Bezwada, Neeti Srivastava
  • Patent number: 9174924
    Abstract: The present invention relates to the discovery of new class of linear and multiarmed hydrolysable linkers and cross linkers for use in the synthesis of biodegradable polymers such as, polyesters, polyurethanes, polyamides, polyureas and degradable epoxy amine resin. The linear and multiarmed hydrolysable linkers of the present invention include symmetrical and/or unsymmetrical ether carboxylic acids, amines, amide diols, amine polyols and isocyanates.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: November 3, 2015
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Patent number: 9045396
    Abstract: The present invention relates to the discovery of new class of linear and multiarmed hydrolysable linkers and cross linkers for use in the synthesis of biodegradable polymers such as, polyesters, polyurethanes, polyamides, polyureas and degradable epoxy amine resin. The linear and multiarmed hydrolysable linkers of the present invention include symmetrical and/or unsymmetrical ether carboxylic acids, amines, amide diols, amine polyols and isocyanates.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: June 2, 2015
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Patent number: 9012677
    Abstract: The present invention relates to the discovery of new class of hydrolysable amino acid derivatives and absorbable polyester amides, polyamides, polyepoxides, polyureas and polyurethanes prepared therefrom. The resultant absorbable polymers are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention, bone wax formulations, medical device coatings, stents, stent coatings, highly porous foams, reticulated foams, wound care, cardiovascular applications, orthopedic devices, surface modifying agents and other implantable medical devices. In addition, these absorbable polymers should have a controlled degradation profile.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 21, 2015
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Patent number: 8901347
    Abstract: Disclosed are novel bioabsorbable and biodegradable monomer compounds, bioabsorbable and biodegradable polymers therefrom, and methods of making such monomers and polymers, which are useful in pharmaceutical delivery systems, tissue engineering applications, tissue adhesives products, implantable medical devices, foams and reticulated foams for wound healing and drug delivery, bone hemostats and bone void fillers, adhesion prevention barriers, meshes, filters, stents, medical device coatings, pharmaceutical drug formulations, consumer product and cosmetic and pharmaceutical packaging, apparel, infusion devices, blood collection tubes and devices, other medical tubes, skin care products, and transdermal drug delivery materials.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 2, 2014
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S. Bezwada
  • Patent number: 8901341
    Abstract: The present invention relates to the discovery of new class of hydrolysable amino acid derivatives and absorbable polyester amides, polyamides, polyepoxides, polyureas and polyurethanes prepared therefrom. The resultant absorbable polymers are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention, bone wax formulations, medical device coatings, stents, stent coatings, highly porous foams, reticulated foams, wound care, cardiovascular applications, orthopedic devices, surface modifying agents and other implantable medical devices. In addition, these absorbable polymers should have a controlled degradation profile.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: December 2, 2014
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S. Bezwada
  • Patent number: 8846845
    Abstract: Absorbable polyurethanes, polyamides and polyester urethanes prepared from at least one compound selected from: or the corresponding diamines or diisocyanates thereof, wherein each X independently represents —CH2COO—, —CH(CH3)COO—, —CH2CH2OCH2COO—, —CH2CH2CH2CH2CH2COO—, —(CH2)yCOO— where y is 2 to 4 or 6 to 24, or —(CH2CH2O)z?CH2COO— where z? is 2 to 24; each Y represents —COCH2O—, —COCH(CH3)O—, —COCH2OCH2CH2O—, —COCH2CH2CH2CH2CH2O—, —CO(CH2)mO— where m is 2 to 4 or 6 to 24, or —COCH2O(CH2CH2O)n— where n is 2 to 24; R? is hydrogen, benzyl or straight-chained or branched alkyl; p is 1 to 4; and Rn represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid and —NO2, which is attached directly to an aromatic ring or attached through an aliphatic chain. Absorbable polymers prepared from these compounds are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention and other implantable medical devices.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: September 30, 2014
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S. Bezwada
  • Patent number: 8802147
    Abstract: The present invention relates to biodegradable polymers (e.g., polyesters and polyester amides) derived from functionalized biologically active compounds that can provide site specific delivery of bioactive compounds upon biodegradation in a controlled manner.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 12, 2014
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Patent number: 8802892
    Abstract: The present invention relates to compounds of formula I, which are functionalized phenolic compounds, and polymers formed from the same. Ar—[O—(X)p—R?]q??I Polymers formed from the functionalized phenolics are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: August 12, 2014
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Patent number: 8754135
    Abstract: The present invention relates to compound of formula I, which are functionalized, non-phenolic amino acids, and polymers formed from the same. Polymers formed from the functionalized amino acids are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: June 17, 2014
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Publication number: 20140163253
    Abstract: The present invention relates to the discovery of new class of linear and multiarmed hydrolysable linkers and cross linkers for use in the synthesis of biodegradable polymers such as, polyesters, polyurethanes, polyamides, polyureas and degradable epoxy amine resin. The linear and multiarmed hydrolysable linkers of the present invention include symmetrical and/or unsymmetrical ether carboxylic acids, amines, amide diols, amine polyols and isocyanates.
    Type: Application
    Filed: February 14, 2014
    Publication date: June 12, 2014
    Applicant: BEZWADA BIOMEDICAL, LLC
    Inventor: Rao S. Bezwada
  • Publication number: 20140099370
    Abstract: The present invention relates to biodegradable polymers (e.g., polyesters and polyester amides) derived from functionalized biologically active compounds that can provide site specific delivery of bioactive compounds upon biodegradation in a controlled manner.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 10, 2014
    Applicant: BEZWADA BIOMEDICAL, LLC
    Inventor: Rao S Bezwada
  • Patent number: 8664429
    Abstract: The present invention relates to the discovery of new class of linear and multiarmed hydrolysable linkers and cross linkers for use in the synthesis of biodegradable polymers such as, polyesters, polyurethanes, polyamides, polyureas and degradable epoxy amine resin. The linear and multiarmed hydrolysable linkers of the present invention include symmetrical and/or unsymmetrical ether carboxylic acids, amines, amide diols, amine polyols and isocyanates.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: March 4, 2014
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Patent number: 8664426
    Abstract: The present invention relates to compounds of formula I and II, which are functionalized amino acids, and polymers formed from the same. Polymers formed from the functionalized amino acids are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: March 4, 2014
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S Bezwada
  • Publication number: 20130317118
    Abstract: The present invention relates to compounds of formula I and II, which are functionalized amino acids, and polymers formed from the same. Polymers formed from the functionalized amino acids are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
    Type: Application
    Filed: July 25, 2013
    Publication date: November 28, 2013
    Applicant: BEZWADA BIOMEDICAL, LLC
    Inventor: Rao S Bezwada
  • Publication number: 20130317120
    Abstract: The present invention relates to compound of formula I, which are functionalized, non-phenolic amino acids, and polymers formed from the same. Polymers formed from the functionalized amino acids are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
    Type: Application
    Filed: August 7, 2013
    Publication date: November 28, 2013
    Applicant: BEZWADA BIOMEDICAL, LLC
    Inventor: Rao S. Bezwada
  • Publication number: 20130310596
    Abstract: The present invention relates to the discovery of new class of linear and multiarmed hydrolysable linkers and cross linkers for use in the synthesis of biodegradable polymers such as, polyesters, polyurethanes, polyamides, polyureas and degradable epoxy amine resin. The linear and multiarmed hydrolysable linkers of the present invention include symmetrical and/or unsymmetrical ether carboxylic acids, amines, amide diols, amine polyols and isocyanates.
    Type: Application
    Filed: November 8, 2012
    Publication date: November 21, 2013
    Applicant: BEZWADA BIOMEDICAL, LLC
    Inventor: Rao S. Bezwada
  • Patent number: RE45548
    Abstract: Compounds selected from: where DRUG-OH, DRUG-COOH and DRUG-NH2 are biologically active compounds; each X is independently selected from —CH2COO— (glycolic acid moiety), —CH(CH3)COO— (lactic acid moiety), —CH2CH2OCH2COO— (dioxanone moiety), —CH2CH2CH2CH2CH2COO— (caprolactone moiety), —(CH2)yCOO—, where y is 2-4 or 6-24 and —(CH2CH2O)zCH2C—, where z is 2-24; each Y is independently selected from —COCH2O— (glycolic ester moiety), —COCH(CH3)O— (lactic ester moiety), —COCH2OCH2CH2O— (dioxanone ester moiety), —COCH2CH2CH2CH2CH2O— (caprolactone ester moiety), —CO(CH2)mO—, where m is 2-4 or 6-24 and —COCH2O(CH2CH2O)n— where n is between 2-24; R? is hydrogen, benzyl or an alkyl group, the alkyl group being either straight-chained or branched; and p is 1-6. Multi-functional compounds and drug dimers, oligomers and polymers are also disclosed.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: June 9, 2015
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S. Bezwada