Luis J Leon

US Patent:

41544684, May 15, 1979

Filed:

Oct 11, 1977

Appl. No.:

5/841075

Inventors:

Luis G. Leon - Westbury NY

International Classification:

E05C 2100

US Classification:

292346

Abstract:

A device for rendering a spring-loaded, sliding bolt lock resistant to tampering comprises a sheet form member which can be mounted between the door stile and the door jamb and is formed with slots so that when a strip of pliable material is inserted between the door stile and the door jamb at a position spaced from the lock and is moved towards the lock, the leading edge of the sheet engages one of the slots in the member.

US Patent:

48658138, Sep 12, 1989

Filed:

Jul 7, 1986

Appl. No.:

6/882167

Inventors:

Luis P. Leon - Fairfield CT

International Classification:

G01N 110

US Classification:

422101

Abstract:

The disposable analytical device includes an outer shell portion having an interior which is divided into reagent chambers and a test sample chamber. The reagent chambers are non-communicable with each other. However the test sample chamber is communicable with each of the reagent chambers through a semi-permeable membrane. The device is formed of an optic quality material to permit analysis of the test results in a spectrophotometer.

US Patent:

43383955, Jul 6, 1982

Filed:

Jul 21, 1980

Appl. No.:

6/171112

Inventors:

Luis P. Leon - Fairfield CT
Chien-Kuo Yeh - Pleasantville NY
Syed I. Ahmad - Orangeburg NY

Assignee:

Technicon Instruments Corporation - Tarrytown NY

International Classification:

C12Q 150
C12Q 148

US Classification:

435 17

Abstract:

Method of analyzing for triglycerides in a biological fluid is disclosed which eliminates interferences arising from endogenous glycerol and pyruvate and the need for parallel blank correction.