Patents by Inventor John F. Lontz

John F. Lontz 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).

  • Patent number: 5644032
    Abstract: A process for producing a fibrinogen concentrate for use as a tissue adhesive from mammalian plasma includes freezing the plasma to a temperature of at most about -20.degree. C. for less than four hours in a container having a surface to volume ratio of from about 4.38:1 to about 1.65:1 reciprocal centimeters, thereby producing frozen plasma; thawing the frozen plasma at a temperature of at least about 4.degree. C. for a time sufficient to attain about 5% to about 95% residual icing, thereby producing thawed plasma; and centrifuging the thawed plasma to produce a fibrinogen concentrate having a solids content of about 6% to about 44% solids by weight of the concentrate.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: July 1, 1997
    Assignee: Fibrin Corporation
    Inventor: John F. Lontz
  • Patent number: 5420250
    Abstract: Cryoprecipitated mammalian plasma proteins with associated glycoproteins, polysaccharides, and numerous other macromolecular entities are transferred directly in the course of controlled thawing and centrifuging from native plasma phase across the boundary layer into a pre-prepared substrate transfer medium at sustained solidus--liquidus equilibrium regulated to residual icing from about 5 weight percent to about 95 weight percent to produce cryoprecipitates with enhanced productivity and enhanced qualifications for in vivo tissue bonding applications.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: May 30, 1995
    Assignee: Fibrin Corporation
    Inventor: John F. Lontz
  • Patent number: 4305768
    Abstract: High fidelity color reproductions are produced whereby color correcting or compensating thin polymeric laminates are applied over photographs, prints and imaging devices and systems, that are initially deficient or excessive in some one or more color rendition, by methods comprising dyeing the thin polymeric laminates, applying an adhesive layer, and laminating onto the color deficient reproduction. The methods and their component processes begin with the production of serial ranges of instrumentally measured color intensities of dyed thin polymeric films compensating for the color deficiency or excesses, followed by applying an adhesive layer for bonding as a laminate, and by bonding the color compensating dyed polymeric film onto the initial color deficient reproduction.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: December 15, 1981
    Assignee: John F. Lontz Associates, Inc.
    Inventor: John F. Lontz
  • Patent number: 4178096
    Abstract: This invention relates to finished photographic reproduction and imaging system by which the photographic color matching to that of the object photographed is accomplished by means of an imposed, permanently adherent integral overlay of transparent film serving to adjust, by addition or subtraction of the color deficiences or excesses with respect to chroma, value and hue so as to more nearly and truly match or approximate the color or colors of the object from which the photograph was made. The color correcting or adjusting overlay of the transparent colored films comprise a broad range of chromal intensities of the nominally red, yellow, blue and green and other intermediate spectral hues and that of discrete mixtures with several orders of color intensities, which overlay is further provided with a pressure-sensitive adhesive for permanent and smooth affixture to the photographic emulsion of the print which is to be provided with the necessary correction or adjustment.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: December 11, 1979
    Assignee: John F. Lontz Associates, Inc.
    Inventor: John F. Lontz