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Lithium/magnesium oxide catalyst and method of making
(United States. Patent and Trademark Office, 1991-08-20)
An improved method for preparing a catalyst which is superior for converting methane to ethane and ethylene is described. The method involves mixing a solution of a magnesium alkoxide in alcohol with a solution of a lithium ...
Pillaring of layered compounds
(United States. Patent and Trademark Office, 1991-05-21)
A process is disclosed for pillaring layered materials which do not swell appreciably in water. The process comprises first intercalating an amine or other neutral molecule such as an amide or dimethyl sulfoxide between ...
Sound emitting device for behavior modification
(United States. Patent and Trademark Office, 1991-10-29)
A device for modifying the undesirable behavior of animals is disclosed which utilizes integrated circuitry to achieve a small size and light weight. Discrimination circuitry analyzes audible indications of undesirable ...
Circular ring resonator distributive electromagnetic signal processor
(United States. Patent and Trademark Office, 1991-06-04)
An electromagnetic signal processor is disclosed comprising an input waveguide, an intermediate waveguide, and an output waveguide. The intermediate waveguide comprises two portions having substantially equal electromagnetic ...
Lepidopteran AKH signal sequence
(United States. Patent and Trademark Office, 1991-06-11)
A baculovirus expression vector system is constructed wherein the natural signal DNA peptide sequence associated with the desired foreign gene, such as CD4 (T cell surface protein T4) is replaced by the signal DNA sequence ...
Treatment of immuno-resistant disease with low-dose interferon
(United States. Patent and Trademark Office, 1991-05-28)
Neoplastic disease, hyperallergenicity, autoimmune disorders characterized by chronic tissue degenerative inflammation and immuno-resistant viral infections are treated by the administration of interferon at a dosage of ...
Progressively monitorable fire alarm system
(United States. Patent and Trademark Office, 1991-02-19)
A method for producing reflectors in a continuous length of optical fiber is disclosed. The present process includes the steps of preparing the ends of two or more optical fibers, placing one or more of these fibers in a ...
Prairie buffalograss
(United States. Patent and Trademark Office, 1991-05-28)
A vegetatively reproduced perennial buffalograss cultivar having 2n=40 chromosomes, named "Prairie", particularly distinguished by its rapid spreading stolons, competitive growth, short height, frost and drought tolerance, ...
Electrochemical method for producing hydrogen and sulfur
(United States. Patent and Trademark Office, 1991-05-28)
A process for the electrochemical production of hydrogen gas and sulfur from hydrogen sulfide gas is disclosed. The process includes forming a substantially equimolar mixture of hydrosulfide and sodium hydrogen. That mixture ...
Position sensor elimination technique for the switched reluctance motor drive
(United States. Patent and Trademark Office, 1991-12-10)
Rotor position information for a switched reluctance (SR) motor drive is obtained indirectly in response to the motor phase inductance. An oscillator generates a signal having a time period that is a function of the ...