Patents by Inventor Leonard Czuba

Leonard Czuba 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: 20060201511
    Abstract: A biohazard mask for civilian use comprises bidirectional HEPA filtering to protect both personal and public health during an outbreak. Several measures are taken to maximize comfort and wearability, such as comfort-fit through a gel seal, anti-fogging protection through separation of the eye volume from the mouth-nose volume and through eye moisture release valves, heat-dissipation through a net suspension, and overpressure release valves to maintain the face seal during coughing or sneezing. Wicking exhalation filters promote moisture abatement around the mouth and nose. Attractive and stylish designs, combined with accommodation for telephone communication or audio entertainment, helps wearers keep the mask on during an outbreak.
    Type: Application
    Filed: June 11, 2003
    Publication date: September 14, 2006
    Inventors: David Freriks, Leonard Czuba
  • Patent number: 4692361
    Abstract: A film laminate for flexible containers capable of containing a product to be maintained and removed under sterile conditions. The film laminate having an outside layer of linear low density polyethylene, a gas barrier layer, a core layer of polyamide, and an inside layer of linear low density polyethylene. The layers being bonded together by a polyurethane adhesive.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: September 8, 1987
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: William D. Johnston, Leonard Czuba, R. D. Webster, Yasuhiko Hori, Masanori Nagata, Shigeki Imano
  • Patent number: 4686125
    Abstract: A film laminate for flexible containers capable of containing a product to be maintained and accessed under sterile conditions. The laminate having an outside layer of linear low density polyethylene, a core layer of nylon, an inside layer of linear low density polyethylene and two layers of a polyurethane adhesive for bonding the layers.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: August 11, 1987
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: William D. Johnston, Leonard Czuba, R. D. Webster