Leonard C Ornstein

7670798, Mar 2, 2010

May 20, 2003

10/442706

Leonard Ornstein - White Plains NY, US
Gena Fischer - Harrington Park NJ, US
David Zelmanovic - Monsey NY, US
Pamela Elsins - Wappinger Falls NY, US
Jolanta Kunicka - Tarrytown NY, US
Michael J. Malin - South Nyack NY, US

Siemens Healthcare Diagnostics Inc. - Tarrytown NY

G01N 1/00
G01N 7/00
G01N 31/00
G01N 33/48
G01N 33/546

435 405, 435 11, 435 2, 435243, 436 8, 436 43, 436 63, 436148, 436176, 436518, 436519, 436520, 436521

The present invention describes semi- and fully-automated methods and reagents therefor for the assay and analysis of body fluid samples, particularly non-blood samples. The methods and reagents are especially useful for the assay and analysis of cerebrospinal fluid (CSF) samples. The reagent compositions sphere and fix all cells in the sample in suspension. Reported results can include red blood cell (RBC) and white blood cell (WBC) counts, WBC differential values, cell-by-cell volumes and dry-mass concentrations.

42573467, Mar 24, 1981

May 30, 1978

5/910411

Leonard Ornstein - White Plains NY
Hazel E. Williams - Ossining NY
Julius Intraub - Plainview NY

Technicon Instruments Corp. - Tarrytown NY

B05C 500
G01N 128

118641

Apparatus for permanently and protectively mounting "wet" thin sections of biological specimens on microscope slides, wherein each specimen is initially bathed in a low-volatile solvent containing a low concentration of first polymerizable material. Such solvent is allowed to evaporate, whereby the liquid polymerizable material permeates and protects the specimen. Following solvent evaporation, a second polymerizable material is layered over the specimen. Preferably, the first and second polymerizable materials comprise a mixture of low-volatility, low-viscosity, liquid acrylic reactomers and a U. V. light-sensitive catalyst system. A conventional cover slip or other planar transparent member can be positioned over the polymerizable materials, and the same are polymerized by exposure to U. V. radiation. The first and second now-polymerized materials encapsulate the specimen on the microscope slide, become integral and completely hardened and are fully devoid of any solvent.

44120044, Oct 25, 1983

Jun 26, 1981

6/277539

Leonard Ornstein - White Plains NY
Young R. Kim - Hartsdale NY

Technicon Instruments Corporation - Tarrytown NY

G01N 3348
G01N 2149

436 10

A method is disclosed of blood serum sample preparation for improved, more accurate and precise, electro-optical method for measuring erythrocyte volumes, individually and as an average.

41823575, Jan 8, 1980

Mar 2, 1978

5/882789

Leonard Ornstein - White Plains NY

F16K 706

137 1

Method and apparatus are disclosed for controlling the relative humidity of a soil environment at a pre-set value using an enclosed volume of a water-soluble or water-swellable material, said enclosed volume separated from the external environment by a relatively stiff and strong semipermeable membrane and separated from a pressurized irrigation water supply by a water-impermeable constrictable flexible section or diaphragm in the supply line. When the soil is more moist than the pre-set value, intake of water through the membrane causes expansion of the water-swellable material which in turn constricts the flexible section of the water supply line to interrupt the flow of water to the soil. When the soil moisture falls below the pre-set value, egress of water from the water-swellable material releases the constricting force on the flexible section thereby allowing increased flow of water through the flexible section of supply line to the soil. This process, which is called hygrostatic irrigation, is especially useful for optimized and unattended control and delivery of water to the root system of a plant growing in soil, particularly a potted plant, as well as for water conservation in the agricultural irrigation of arid regions.

50454722, Sep 3, 1991

Jun 14, 1990

7/537887

Leonard Ornstein - White Plains NY
Young R. Kim - Hartsdale NY

Technicon Instruments Corporation - Tarrytown NY

G01N 2149
G01N 3348
G01N 1514

436 10

A composition is disclosed of blood serum sample preparation for improved, more accurate and precise, electrooptical method for measuring erythrocyte volumes, individually and as an average.

45458316, Oct 8, 1985

Sep 13, 1982

6/417307

Leonard Ornstein - White Plains NY

The Mount Sinai School of Medicine - New York NY

G01N 100
G01N 3348
A61K 3174
B44C 116

156 57

A method is described for transferring a thin tissue section affixed to a substrate by a first pressure-sensitive adhesive layer to a microscope slide which supports a second pressure-sensitive adhesive layer of polymerizable material. The tissue section is contacted to the second adhesive layer to form a laminate. Following polymerization of the second layer to form a positive bond between the tissue section and microscope slide, the substrate and first adhesive layer are completely removed to expose the tissue section, now affixed to the microscope slide by the polymerized second adhesive layer, for subsequent processing.

55902189, Dec 31, 1996

Jun 7, 1995

8/481108

Leonard Ornstein - White Plains NY

Bayer Corporation - Tarrytown NY

G06K 962

382157

An unsupervised back propagation method for training neural networks. For a set of inputs, target outputs are assigned l's and O's randomly or arbitrarily for a small number of outputs. The learning process is initiated and the convergence of outputs towards targets is monitored. At intervals, the learning is paused, and the values for those targets for the outputs which are converging at a less than average rate, are changed (e. g. , 0. fwdarw. 1, or 1. fwdarw. 0), and the learning is then resumed with the new targets. The process is continuously iterated and the outputs converge on a stable classification, thereby providing unsupervised back propagation. In a further embodiment, samples classified with the trained network may serve as the training sets for additional subdivisions to grow additional layers of a hierarchical classification tree which converges to indivisible branch tips. After training is completed, such a tree may be used to classify new unlabelled samples with high efficiency. In yet another embodiment, the unsupervised back propagation method of the present invention may be adapted to classify fuzzy sets.

40407853, Aug 9, 1977

Oct 18, 1976

5/733435

Young Ran Kim - Hartsdale NY
Leonard Ornstein - White Plains NY
Henry Cook Waters - Oxford CT

Technicon Instruments Corporation - Tarrytown NY

G01N 3316

23230B

Blood is preserved by combining samples with a preservative reagent consisting of an aqueous mixture of a mono-, di- or trisaccharide component and formaldehyde.