Patents by Inventor John Teffenhart

John Teffenhart 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: 20240124808
    Abstract: Suggested are polyurea microcapsules obtainable or obtained by reacting di- and/or polyisocyanates and guanidine carbonate in the presence of chemically modified biopolymer colloidal protection agents. The capsules can be loaded for example with fragrances and show high resistance against agglomeration in unstructured (viscosity 10-300 cps), anionic surfactant based liquid products.
    Type: Application
    Filed: January 17, 2020
    Publication date: April 18, 2024
    Inventors: John TEFFENHART, Timothy EVANS-LORA, Keith MC DERMOTT
  • Publication number: 20240122816
    Abstract: Suggested is a non-disposable multi-use article which is impregnated or coated with a care additive and is capable of transferring said care additive from its surface to human skin.
    Type: Application
    Filed: January 17, 2020
    Publication date: April 18, 2024
    Inventors: William CHAZEY III, John TEFFENHART, Timothy EVANS-LORA, Keith MC DERMOTT, Michael IMPERIALE
  • Patent number: 7388814
    Abstract: The present invention provides a time indicator and method of use for determining and visually displaying the passage of a predetermined period of time. The time indicator of the present invention comprises a top portion and a bottom portion. The top portion is a multi-layer segment comprising a dye support layer coated with a masking layer, which containing a viewing window therethrough, and a non-curing ink or dye permeable polymer layer containing a migrating agent. The bottom portion is a multi-layer segment comprising a base support layer and a migrating ink or dye printed on the top surface of the base segment. The time indicator apparatus further comprises a removable impervious film or middle layer, which can be removed allowing the top and bottom portions to come into contact with one another, thereby activating the time indicator. The time indicator of the present invention allows one to follow the uniform directional visual dye migration through the viewing window.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: June 17, 2008
    Inventors: John Teffenhart, Benny S. Yam, Raymond S. Brown, James Mullowney
  • Publication number: 20070140068
    Abstract: The present invention provides a time indicator and method of use for determining and visually displaying the passage of a predetermined period of time. The time indicator of the present invention comprises a top portion and a bottom portion. The top portion is a multi-layer segment comprising a dye support layer coated with a masking layer, which containing a viewing window therethrough, and a non-curing ink or dye permeable polymer layer containing a migrating agent. The bottom portion is a multi-layer segment comprising a base support layer and a migrating ink or dye printed on the top surface of the base segment. The time indicator apparatus further comprises a removable impervious film or middle layer, which can be removed allowing the top and bottom portions to come into contact with one another, thereby activating the time indicator. The time indicator of the present invention allows one to follow the uniform directional visual dye migration through the viewing window.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 21, 2007
    Inventors: John Teffenhart, Benny Yam, Raymond Brown, James Mullowney
  • Patent number: 6177523
    Abstract: The present invention relates to functionalizable and crosslinkable polyurethanes formed of a polyurethane intermediate including one or more ester groups which react with an amine equivalent to form an amide unit. The polyurethane intermediate comprises the reaction product of alkyl ester of dihydroxypolyacid or dimethylolalkanoic acid, a polyoxyalkylene diol and an organic diisocyanate. The polyurethane is reacted with a solution of an amine equivalent and a solvent or an amine. An article of manufacture can be formed from the polyurethane.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: January 23, 2001
    Assignee: CardioTech International, Inc.
    Inventors: Murray H. Reich, John Teffenhart
  • Patent number: 5993972
    Abstract: An improved amphiphilic diol is prepared with a controlled type and amount of alkylene glycol, catalyst, hydrophobic and hydrophilic diol with diisocyanate and water. Critical selection of the type, molecular weight and ratios of hydrophilic to hydrophobic diol, isocyanate to hydroxyl groups, average molecular weight of the diol component, the amount of water in the reaction mixture produces a polyuretheane having high slip, Shore A Hardness values, wet tensile strength and tear strength. This invention also includes uses of the polyurethane in catheters, shaving products, synthetic valves, veins and arteries, stents, ports, shunts and coatings. Preferably, the polyurethane is used in combination with a filler for application to rubber gloves. In addition, dispersions, lotions, gels and solutions can be formed of the polyurethane.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: November 30, 1999
    Assignee: Tyndale Plains-Hunter, Ltd.
    Inventors: Murray H. Reich, John Teffenhart, Jirina Kuzma