Patents by Inventor Thomas R. Welter

Thomas R. Welter 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).

  • Patent number: 5342730
    Abstract: In accordance with this invention a photographic color diffusion transfer element and process for its development are provided.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: August 30, 1994
    Assignee: Eastman Kodak Company
    Inventors: Thomas R. Welter, John Texter
  • Patent number: 5266597
    Abstract: A method of controlling fungus is provided which comprises contacting said fungus with a fungicidally effective amount of a compound having the following structure: ##STR1## wherein R is a halogen atom, andR.sup.1 is selected from the group consisting of substituted or unsubstituted, straight or branched alkyl having from about 1 to 6 carbon atoms,alkoxy having from about 1 to 6 carbon atoms,halo, provided that when any R.sup.1 is chloro, n is 2 and at least one R.sup.1 is meta-chloro,substituted or unsubstituted sulfamoyl, andsubstituted or unsubstituted carbamoyl,where n is 1 or 2.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: November 30, 1993
    Assignee: Eastman Kodak Company
    Inventors: Thomas R. Welter, John J. Delany, III
  • Patent number: 5245021
    Abstract: Named compounds are useful in making dry analytical elements for assaying lithium in serum. The compounds have the general structure: ##STR1## wherein R, R.sub.1, R.sub.2 and X are as presented below:______________________________________ R R.sub.1 R.sub.2 X ______________________________________ n-C.sub.12 H.sub.25 SO.sub.2 CH.sub.3 CH.sub.3 CH n-C.sub.12 H.sub.25 NO.sub.2 CH.sub.3 CH CH.sub.3 SO.sub.2 N(n-C.sub.6 H.sub.13).sub.2 CH.sub.3 CH CH.sub.2 C.sub.6 H.sub.5 SO.sub.2 N(n-C.sub.6 H.sub.13).sub.2 CH.sub.3 CH CH.sub.2 C.sub.6 H.sub.5 SO.sub.2 N(CH.sub.3)-n-C.sub.18 H.sub.37 CH.sub.3 CH CH.sub.3 NO.sub.2 n-C.sub.7 H.sub.15 CH n-C.sub.12 H.sub.25 H CH.sub.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: September 14, 1993
    Assignee: Eastman Kodak Company
    Inventors: Ronald H. Engebrecht, Thomas R. Welter
  • Patent number: 5238909
    Abstract: A method of controlling plant growth comprising applying to the plants or to a habitat thereof a herbicidally effective amount of a compound having the structure: ##STR1## wherein: R is selected from carboxy, carboxylate salt, carboxylate ester, formyl, halomethyl or a substituted methyl group capable of ambient oxidation or hydrolysis to a carboxy group, wherein the substituent on the substituted methyl group consists of an aliphatic group having a heteroatom containing group. The invention is useful in providing an alternative to known herbicidal methods and compositions.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: August 24, 1993
    Assignee: Eastman Kodak Company
    Inventors: Thomas R. Welter, John J. Delany, III
  • Patent number: 5188802
    Abstract: A novel 14-crown 4-ether derivative is disclosed for use in a dry analytical element for assaying lithium.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: February 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: James R. Schaeffer, Ronald H. Engebrecht, Robert F. Winterkorn, Harold C. Warren, III, Thomas R. Welter
  • Patent number: 5183894
    Abstract: The present invention relates to 2-substituted-1-hydroxyindoles of the following formula: ##STR1## wherein, R.sup.1 is an electron withdrawing group,R.sup.2 is an alkenyl having 2-10 carbon atoms, and N-substituted .alpha.-iminobenzyl group wherein the substituents are selected from the group consisting of phenyl, anilino and dimethylamino, an unsubstituted aromatic group, and an aromatic group having meta or para substituents which are nitro, trifluoromethyl, fluoro, formyl, hydroxyiminomethyl and carbamoyl,R.sup.3 is a halogen atom, andn is 0, 1, or 2,provided that when R.sup.2 is either phenyl or nitro substituted phenyl and n is 0, then R.sup.1 is not cyano.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: February 2, 1993
    Assignee: Eastman Kodak Company
    Inventors: William R. Schleigh, Thomas R. Welter
  • Patent number: 5176738
    Abstract: A method of controlling plant growth is provided comprising applying to the plants or to a habitat thereof a herbicidally effective amount of a compound having the structure: ##STR1## wherein R.sup.1 is selected from the group consisting of carboxy, cyano, ester ##STR2## wherein R.sup.2 is selected from the group consisting of a straight-chained alkyl group or a branched-chained alkyl group, of about 1 to 8 carbon atoms.R.sup.3 and R.sup.4 are selected from the group consisting of hydrogen, alkyl of about 1 to 8 carbon atoms, cycloalkyl of about 5 to 6 carbon atoms, and heterocyclyl of about 5 to 6 carbon and hetero atoms, or,R.sup.3 and R.sup.4 taken together with the nitrogen atoms to which they are attached form a heterocyclyl group having 5 to 6 carbon and hetero atoms. Also, novel compounds having the above structure are provided.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: January 5, 1993
    Assignee: Eastman Kodak Company
    Inventor: Thomas R. Welter
  • Patent number: 5155136
    Abstract: A method of controlling fungus is provided which comprises contacting said fungus with a fungicidally effective amount of a compound having the following structure: ##STR1## wherein R is a halogen ateom, andR.sup.1 is selected from the group consisting of substituted or unsubstituted, straight or branched alkyl having from about 1 to 6 carbon atoms, alkoxy having from about 1 to 6 carbon atoms, halo, provided that when any R.sup.1 is chloro, n is 2 and at least one R.sup.1 is meta-chloro, substituted or unsubstituted sulfamoyl, and substituted or unsubstituted carbamoyl,where n is 1 or 2.
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: October 13, 1992
    Assignee: Eastman Kodak Company
    Inventors: Thomas R. Welter, John J. Delany, III
  • Patent number: 5132436
    Abstract: Intermediate compounds for the preparation of useful 14-crown-4-ether derivatives are presented. The intermediates have the structure: ##STR1## wherein R represents CH.sub.3, n-C.sub.12 H.sub.25 and CH.sub.2 C.sub.6 H.sub.5 ; and R.sub.2 represents CH.sub.3, and n-C.sub.7 H.sub.15.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: July 21, 1992
    Assignee: Eastman Kodak Company
    Inventors: Ronald H. Engebrecht, Thomas R. Welter
  • Patent number: 5118695
    Abstract: 1-Hydroxyindoles of the following formula are useful in controlling fungi: ##STR1## wherein: R.sup.1 is hydrogen or an electron withdrawing group;R.sup.2 is selected from the group consisting of alkenyl having 2-10 carbon atoms, N-substituted-.alpha.-iminobenzyl, an unsubstituted or substituted aromatic group and acyl of 2-16 carbon atoms,R.sup.3 is selected from the group consisting of halogen atoms, andn is 0 to 4.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: June 2, 1992
    Assignee: Eastman Kodak Company
    Inventors: William R. Schleigh, Thomas R. Welter
  • Patent number: 5087288
    Abstract: A method of controlling plant growth is provided comprising applying to the plants or to a habitat thereof a herbicidally effective amount of a compound having the structure: ##STR1## wherein R.sup.1 is selected from the group consisting of carboxy, cyano, ester ##STR2## or amido ##STR3## wherein R.sup.2 is selected from the group consisting of a straight-chained alkyl group or a branched-chain alkyl group, of about 1 to 8 carbon atoms,R.sup.3 and R.sup.4 are selected from the group consisting of hydrogen, alkyl of about 1 to 8 carbon atoms, cycloalkyl of about 5 to 6 carbon atoms, and heterocyclyl of about 5 to 6 carbon and hetero atoms, or,R.sup.3 and R.sup.4 taken together with the nitrogen atoms to which they are attached form a heterocyclyl group having 5 to 6 carbon and hetero atoms. Also, novel compounds having the above structure are provided.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: February 11, 1992
    Assignee: Eastman Kodak Company
    Inventor: Thomas R. Welter
  • Patent number: 4720559
    Abstract: There are disclosed novel benzofurans having the following structural formula: ##STR1## wherein R is alkenyl of 1 to 6 carbon atoms or aryl of from 6 to 10 carbon atoms; R.sub.1 is H, alkali metal, or alkyl of 1 to 4 carbon atoms; and R.sub.2 is alkyl or alkoxy of from 1 to 5 carbon atoms, hydrogen, amino or dialkylamino, nitro, sulfonyl, alkyl or aryl thioether or halide. Also disclosed is a novel process of making the benzofurans, comprising the step of cyclizing an o-(2-carboxyvinyl)phenyl unsaturated alkyl ether in the presence of a base selected from the group consisting of KOH, NaOH, LiOH, dimsyl sodium, lithium diisopropylamide, potassium tert-butoxide, and mixtures thereof, at room temperature.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: January 19, 1988
    Assignee: Eastman Kodak Company
    Inventor: Thomas R. Welter
  • Patent number: 4363865
    Abstract: Imidomethyl blocked photographic image dyes and dye releasing compounds are useful in photographic elements, film units and processes. The blocked photographic dyes and dye releasing compounds have the structures: ##STR1## wherein: J represents ##STR2## X represents the atoms to complete at least one 5- or 6-membered ring; R represents hydrogen, alkyl of 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms;Q represents ##STR3## --Q--DYE represents the residue of a diffusible photographic dye; and CAR is a ballasted carrier moiety from which the dye moiety is released as a function of silver halide development.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: December 14, 1982
    Assignee: Eastman Kodak Company
    Inventors: James A. Reczek, Thomas R. Welter
  • Patent number: 4350752
    Abstract: Imidomethyl blocked photographic reagents are useful in photographic elements, film units and processes. The blocked photographic reagents have the structure: ##STR1## wherein: J represents ##STR2## X represents the atoms to complete a 5- or 6-membered ring or ring system; R represents hydrogen, alkyl or 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms; andPR represents the residue of an organic photographic reagent containing a heteroatom through which it is joined to the imidomethyl blocking group.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: September 21, 1982
    Assignee: Eastman Kodak Company
    Inventors: James A. Reczek, Thomas R. Welter