Patents by Inventor Marc Comoth

Marc Comoth 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: 20250178072
    Abstract: A method for producing an entirely stainless steel, high-strength self-drilling screw that does not need heat treatment downstream of manufacturing to improve material hardness. A stainless steel wire section blank is provided. A screw head is cold-formed at a first end. Subsequently, the diameter at the second end section is reduced by cold forming. A drill tip is produced at the second end by a tweaking movement transverse to the longitudinal axis. Subsequently, the drill tip is finished. Any protruding material flags remaining on the drill tip cutting edges are sheared off during subsequent thread rolling. During preforming, contour edges are formed in the region of the subsequent cutting edges, with the remaining material thickness between 0.3 mm and 1.0 mm. The drill tip final forming forms these contour edges into the cutting edges, and the remaining material thickness between the cutting edge and the material flag is between 0.05 mm and 0.2 mm.
    Type: Application
    Filed: November 26, 2024
    Publication date: June 5, 2025
    Applicant: SFS Group International AG
    Inventors: Marc COMOTH, Hanspeter KUSTER, Sven SPIRIG
  • Patent number: 10619662
    Abstract: The invention relates to a screw (10) including a head (12), a shaft (14), and a thread (16), with the thread (16) having at least two different thread sections (18, 20), with an external diameter DGn of a thread section (18) near the head being smaller than an external diameter DGf of a thread section (20) distant from the head and greater than an external diameter DSf of the shaft (14) in the area of the thread section (20) distant from the head. According to the invention it is provided that the thread (16) extends up to the bottom of the head (12). The invention further relates to a fastening arrangement (24), the use thereof, and a method.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 14, 2020
    Assignee: SFS intec Holding AG
    Inventors: Roland Mair, Marc Comoth
  • Publication number: 20170218998
    Abstract: The invention relates to a screw (10) including a head (12), a shaft (14), and a thread (16), with the thread (16) having at least two different thread sections (18, 20), with an external diameter DGn of a thread section (18) near the head being smaller than an external diameter DGf of a thread section (20) distant from the head and greater than an external diameter DSf of the shaft (14) in the area of the thread section (20) distant from the head. According to the invention it is provided that the thread (16) extends up to the bottom of the head (12). The invention further relates to a fastening arrangement (24), the use thereof, and a method.
    Type: Application
    Filed: January 20, 2017
    Publication date: August 3, 2017
    Applicant: SFS intec Holding AG
    Inventors: Roland Mair, Marc Comoth