Patents by Inventor Stein G. Ahlqvist

Stein G. Ahlqvist 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).

  • Golf club
    Publication number: 20040038745
    Abstract: The invention relates to a golf club (1) comprising a shaft (3) provided with a handle portion (2) and a club blade (5) projecting from the lower portion (4) of said shaft (3), the hitting surface (6) of said blade is provided with a plurality of scores or grooves (7). Those grooves (7) are arranged at a predetermined mutual distance and do extend in a diverging or parallel pattern or area over at least the hitting surface (6) of the club blade (5).
    Type: Application
    Filed: June 9, 2003
    Publication date: February 26, 2004
    Inventor: Stein G. Ahlqvist
  • Process and device in so-called biofilters, and device for moistening same
    Patent number: 6069003
    Abstract: Process and device for so-called biofilters, in which polluted gas, e.g. air, is made to pass through, and thereby be cleaned in a bed of bed media arranged in a container, comprising measuring the moisture content of the bed and the supply of fluid, e.g. water, in order to maintain the desired moisture content, wherein the moisture content of the bed is measured by elements (9; 23, 23') which are not in contact with the bed media.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: May 30, 2000
    Inventor: Stein G. Ahlqvist
  • Phone holder
    Patent number: D596172
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 14, 2009
    Inventor: Stein G. Ahlqvist
  • Releasable clip for holding sheets of paper together
    Patent number: D410954
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: June 15, 1999
    Inventor: Stein G. Ahlqvist