Patents Examined by S. Mark Clark
  • Patent number: 5317003
    Abstract: A herbicidal composition is provided which is substantially non-irritant to the eyes and which comprises a stable aqueous concentrate solution of one or more agriculturally acceptable salts-of N-phosphonomethylglycine and a surfactant represented by the formula ##STR1## wherein R is an alkyl group having from about 6 to about 14 carbon atoms, R.sup.1 is ethyl, propyl, or a mixture of ethyl and propyl, the sum of n and m is between about 5 and about 50, R.sup.2 is an alkyl group with 1-4 carbon atoms, X is an agriculturally acceptable anion, and the weight ratio of surfactant to N-phosphonomethylglycine (expressed as the acid equivalent) is between about 1:5 and about 5:1.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: May 31, 1994
    Assignee: Monsanto Company
    Inventors: James W. Kassebaum, Howard C. Berk
  • Patent number: 5298478
    Abstract: A preservative for plants is described whose active ingredient(s) are the compounds selected from the group consisting of olefin compounds and salts and esters thereof, N-(2-chloro-4-pyridyl)ureas, dipicolinic acid and derivatives and salts thereof, epoxy compounds and salts and esters thereof, and SH-reagents. The preservative is usable for keeping the freshness of plants, in particular fruits, vegetables and cut flowers, and cut flowers for a long period of time.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: March 29, 1994
    Assignee: Kyowa Hakko Kagyo Co.
    Inventors: Kazuhiro Yamamoto, Noriko Yoshioka, Tadayasu Furukawa
  • Patent number: 5030268
    Abstract: Corn gluten meal is used as a natural preemergence herbicide.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: July 9, 1991
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Nick E. Christians