Randy K Mccormick

US Patent:

49239783, May 8, 1990

Filed:

Dec 28, 1987

Appl. No.:

7/138038

Inventors:

Randy M. McCormick - Wilmington DE

Assignee:

E. I. Du Pont de Nemours & Company - Wilmington DE

International Classification:

C07H 2100
C07K 318
C07K 320

US Classification:

536 27

Abstract:

The process for separating the proteinaceous materials from nucleic acids involves contacting a solution containing the proteinaceous materials and nucleic acids with a solid phase extraction material capable of binding proteins to form bound and unbound fractions and then isolating the unbound fraction containing the nucleic acids.

US Patent:

55784607, Nov 26, 1996

Filed:

Apr 18, 1995

Appl. No.:

8/424753

Inventors:

Richard C. Ebersole - Wilmington DE
John G. DeCarolis - Newark DE
Randy M. McCormick - Santa Clara CA

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

C12Q 102
C12Q 124
C12N 1300

US Classification:

435 29

Abstract:

The present invention sorts microorganism populations from a mixture which contains more than one microorganism population. Microorganisms of different types vary in size, shape, and surface charge characteristics. These characteristics we believe contribute to the rate of migration for microorganisms under the influence of an electric field. Microorganisms of the same population (genus and species) will migrate similarly. By applying an electric field in a direction opposite the direction of fluid flow, separation is enhanced.

US Patent:

50771965, Dec 31, 1991

Filed:

Apr 29, 1988

Appl. No.:

7/188544

Inventors:

Randy M. McCormick - Wilmington DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C12Q 168
G01N 33566
C07H 1512

US Classification:

435 6

Abstract:

A novel nucleic acid containing an arabinonucleic acid segment is provided as a probe in nucleic acid assays. The arabinose moiety of the probe can be detected with anti-arabinose antibody-label conjugates.

US Patent:

47600179, Jul 26, 1988

Filed:

Dec 23, 1985

Appl. No.:

6/812574

Inventors:

Randy M. McCormick - Wilmington DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

C12Q 168
C07H 1512

US Classification:

435 6

Abstract:

A novel nucleic acid, arabinonucleic acid, is provided as a probe in nucleic acid assays. The arabinose moiety of the probe can be detected with anti-arabinose antibody-label conjugates.