Patents by Inventor Ludwig Wahl

Ludwig Wahl 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).

  • Sheetlike composite
    Patent number: 5340642
    Abstract: In a sheetlike composite comprising a polyolefin matrix and natural fiber mats as reinforcement the natural fibers have a basis weight of more than 10 dtex. Sisal fibers are preferred. The composites are used in particular in automotive construction.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: August 23, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Baumgartl, Alois Schlarb, Ludwig Wahl, Peter Ittemann, Karl-Ludwig Brentrup
  • Fiber-reinforced thermoplastic panels
    Patent number: 4931358
    Abstract: The invention relates to semifinished material consisting of a thermoplastic polymer and a needled textile fabric made up of at least two layers of oriented continuous filament yarn, each having an areal mass of not more than 300 g/m.sup.2, and at least one layer of unoriented fibers.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: June 5, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Ludwig Wahl, Helmut Vogel
  • Glass-mat-reinforced thermoplastic panels
    Patent number: 4885205
    Abstract: Semifinished material consisting of symmetrically-needled glass-fiber mat impregnated with a thermoplastic polymer. The glass mat can be made by, for instance, needling continuous filament web from above and below at the same time with a double needling machine.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: December 5, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Ludwig Wahl, Helmut Vogel
  • Glass-mat-reinforced thermoplastic panels
    Patent number: RE36756
    Abstract: Semifinished material consisting of symmetrically-needled glass-fiber mat impregnated with a thermoplastic polymer. The glass mat can be made by, for instance, needling continuous filament web from above and below at the same time with a double needling machine.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: June 27, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Ludwig Wahl, Helmut Vogel