Patents by Inventor Perry L. Parke

Perry L. Parke 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: 20180250173
    Abstract: A dental absorbent pad (10) has a moisture permeable outer layer (11) which is folded upon itself to form a top side (12), a bottom side (13), and a peripheral margin area (15). The folded outer layer forms a cavity between the top side and the bottom side which is filled with a mass of unsupported, free-flowing granular superabsorbent material (16). The mass of granular superabsorbent material may be grains of sodium salt of cross linked polyacrylic acid with a grain size or diameter of 1 to 850 microns.
    Type: Application
    Filed: February 27, 2018
    Publication date: September 6, 2018
    Inventors: Perry L. Parke, Emily Brayman
  • Publication number: 20170172704
    Abstract: A dental bur (10) is disclosed having an elongated shank (11) which extends to a cutting head (12). The shank includes a gripping portion (14), a tapered transition portion (15), and a neck portion (16). The diameter of the neck portion (D1) is generally the same as the diameter of the cutting head (D2). The cutting head includes six helical cutting flutes (20) extending from the neck portion (16) to a tip (18). Each cutting flute has a top cutting edge (21) and a series of generally rectangular shaped cross-cut notches. The rectangular shaped cutting notches are formed by a generally flat floor (25) and two oppositely disposed sidewalls (26). The floor forms a floor cutting edge (28) while the sidewalls form sidewall cutting edges (29). The intersection of the floor cutting edge with the sidewall cutting edges form two interior cutting corners (30).
    Type: Application
    Filed: December 21, 2015
    Publication date: June 22, 2017
    Applicant: Neo-Flo, Inc.
    Inventors: Perry L. Parke, Richard Muller
  • Patent number: 7425664
    Abstract: A dental absorbent pad (10) is disclosed having a moisture permeable, outer layer (11), a moisture absorbent layer (12), a stiffening plate (13), and a moisture impermeable backing (14). The moisture absorbent layer and stiffening plate are smaller in size than the overlying outer layer and backing so that a margin (17) is formed thereby which surrounds the moisture absorbent layer and stiffening plate. The margin is very flexible and therefor comfortable to a patient undergoing a dental procedure.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: September 16, 2008
    Inventors: Thomas H. Maass, Jr., Perry L. Parke
  • Patent number: D733302
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: June 30, 2015
    Assignee: MDT MICRO DIAMOND TECHNOLOGIES LTD
    Inventors: Perry L. Parke, Chad B. Bishop