Patents by Inventor Fridolin J. Ritter

Fridolin J. Ritter 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).

  • (6E,10Z)-3,4,7,11-Tetramethyl-6,10-tridecadienal-1
    Patent number: 4200590
    Abstract: Novel (6E,10Z)-3,4,7,11-tetramethyl-6,10-tridecadienal-1 and compositions thereof which induces trail following in ants and which can be used to lure these insects towards baits or other devices for controlling or eradicating insects.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: April 29, 1980
    Assignee: Nederlandse Centrale Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek
    Inventor: Fridolin J. Ritter
  • Attractant for the potato moth and the preparation of the former
    Patent number: 4188374
    Abstract: As attractant for the potato moth (Phthorimaea operculella) the novel compound trans-4, cis-7,10-trideca-dienyl acetate (2) has been shown to be strongly active, both as such and, still more active, as a synergistic mixture with the known prior art compound trans-4, cis-7-trideca-dienyl acetate (1).The preparation of the compound (2) is described hereinbelow.
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: February 12, 1980
    Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappe-Lijk Onderzoek Ten Behoeve Van Nijverheid, Handel En-Verkeer
    Inventors: Simon Voerman, Cornelis J. Persoons, Fridolin J. Ritter
  • Trail-following substance
    Patent number: 4146609
    Abstract: Substances which induce trail-following in ants characterized by the formula(6E,10Z)-3,4,7,11-tetramethyl-6,10-tridecadienal-1,methods for preparing said compounds, and a lure composition comprising said compounds.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: March 27, 1979
    Assignee: Nederlandse Organisatie Voor Toegepastnatuurwetenschappelijk Onderzoek Ten Behoeve Van Nijverheid, Handel en Verkeer
    Inventor: Fridolin J. Ritter
  • 5-Methyl-3-N-butyl-octahydroindolizine as an attractant for ants
    Patent number: 4073882
    Abstract: 5-METHYL-3-NORMAL BUTYL-OCTAHYDROINDOLIZINE IS A NOVEL SUBSTANCE WHICH IS A POWERFUL ATTRACTANT FOR ANTS, ESPECIALLY THE Pharaoh's ant.It can be prepared from the novel substance 5-methyl-3-normal butyl-6,8-dicarbethoxy-7-keto-octahydroindolizine.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: February 14, 1978
    Assignee: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek Ten Behoeve Van Nijverheld Handel en Verkeer
    Inventor: Fridolin J. Ritter
  • Pheromone
    Patent number: 3980771
    Abstract: A mixture of cis-9-tetradecenyl acetate and cis-11-tetradecenyl acetate can be employed as a powerful attractant for instance in traps to detect or control infestations of the summerfruit Tortrix moth Adoxophyes Orana or to confuse the male insect of this species in its search for the female, thereby preventing or diminishing its reproduction.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: September 14, 1976
    Assignee: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek Ten Behoeve Van Nijverheid, Handel en Verkeer
    Inventors: Geertruida M. Meijer, Fridolin J. Ritter, Albert K. Minks, Simon Voerman, Cornelis J. Persoons