Robert Justin Crouch

US Patent:

45431019, Sep 24, 1985

Filed:

Mar 28, 1984

Appl. No.:

6/594057

Inventors:

Robert C. Crouch - Wilmington DE

Assignee:

Adria Laboratories, Inc. - Columbus OH

International Classification:

A61M 516

US Classification:

604411

Abstract:

A device for use in equalizing the pressure inside a vial during the addition or removal of fluid comprising a one piece sterilizable device for use in equalizing the pressure inside a vial during the addition or removal of fluid which comprises a cannula having a sharpened beveled lower end for puncturing the septum of a vial, a blunt upper end covered with a septum that can be punctured by the needle of a hypodermic syringe, and an enlarged annular portion below the blunt upper end limiting entry of the device into the vial, said enlarged annular portion having an air channel leading from the inside of the cannula through the enlarged annular portion to the outside of the cannula said air channel being provided at its outer end with means for one-way air flow.

US Patent:

41429389, Mar 6, 1979

Filed:

Oct 8, 1976

Appl. No.:

5/730920

Inventors:

William S. Stavropoulos - Carmel IN
Robert D. Crouch - Indianapolis IN

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C07G 702
G01N 3114

US Classification:

195 63

Abstract:

Triglycerides in biological fluids containing interfering substances, such as phospholipids, are determined by hydrolyzing the triglycerides to glycerol in a short time span at moderate temperatures with a solution of alkali metal hydroxide in methanol, and treating the resultant hydrolysis mixture with a water soluble magnesium salt to precipitate the interfering substances. Glycerol is then colorimetrically determined in the resultant supernatant solution by incubating with a single reagent-substrate composition to develop a measurable color.

US Patent:

40010899, Jan 4, 1977

Filed:

Mar 20, 1974

Appl. No.:

5/452879

Inventors:

William S. Stavropoulos - Carmel IN
Robert D. Crouch - Indianapolis IN

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C12K 104
G01N 3100

US Classification:

1951035R

Abstract:

A novel reagent and method for colorimetrically determining the concentration of triglycerides in biological fluids, and for rapid determination of glycerol are described. Triglycerides are hydrolyzed in methanolic base to glycerol, and glycerol content is determined colorimetrically.