Patents Represented by Attorney Merlin B. Davey

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  • Method and product for treating soil to suppress the nitrification of ammonium nitrogen therein
    Patent number: 4317672
    Abstract: The present invention relates to crop culture and is particularly concerned with practices for conserving soil nitrogen and for supplying the soil nitrogen requirements for plant nutrition. These practices involve the employment, as active agent, of a novel butane compound having the formula ##STR1## wherein X is H or ##STR2## R is H or C.sub.1 -C.sub.8 alkyl; R' is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halo andn is an integer from 0 to 2.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: March 2, 1982
    Assignee: The Dow Chemical Company
    Inventors: Jeffrey D. Griffith, Thomas M. Ozretich
  • Stable insecticide containing latexes, method of making and method of distributing insecticide
    Patent number: 4303642
    Abstract: Stable latexes comprising polymers containing chlorpyrifos or chlorpyrifos-methyl insecticide are prepared by mixing the latex with the insecticide at temperatures of 40.degree. to less than 100.degree. C., with stirring. The polymer granules protect the dissolved insecticide from early leaching or decomposition and prolong the effect and soil penetration of the toxicant.
    Type: Grant
    Filed: May 7, 1980
    Date of Patent: December 1, 1981
    Assignee: The Dow Chemical Company
    Inventor: Donald A. Kangas
  • Method and composition for treating soil to suppress the nitrification of ammonium nitrogen therein
    Patent number: 4300940
    Abstract: Soil nitrogen is conserved and plant nutrition improved by treating plant growth media with certain phenyl substituted butane diols, or phenylbutyl carboxylic or sulfonic acids such as ethanesulfonic acid-4,4,4-trichloro-2-hydroxy-2-phenylbutyl ester.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: November 17, 1981
    Assignee: The Dow Chemical Company
    Inventor: Jeffrey D. Griffith
  • Drill sharpening gauge
    Patent number: 4227312
    Abstract: This invention relates to a drill sharpening gauge which can be positioned close to an abrasive motor-driven wheel so that the operator can quickly check the length of the edges of the drill bit at the tip of the drill to insure that both edges are the same length and thus the angles are equal, and with present manufacturing technology the drill sharpening gauge of this invention is one that can be easily and economically made.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: October 14, 1980
    Inventor: Wilbur A. Marshall
  • Drill sharpening gauge
    Patent number: 4215483
    Abstract: This invention relates to a drill sharpening gauge which can be positioned close to an abrasive motor-driven wheel so that the operator can quickly check the length of the edges of the drill bit at the tip of the drill to insure that both cutting edges are the same length, and thus the angles are equal.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: August 5, 1980
    Inventor: Wilbur A. Marshall