Search
Now showing items 1-10 of 62
Method for the conversion of cephalomannine to taxol and for the preparation of n-acyl analogs of taxol
(United States Patent and Trademark Office, 1995-11-28)
The natural product cephalomannine can be converted to the important anticancer natural product taxol by a simple process involving the steps of dihydroxylation to give cephalomannine-diols, diol cleavage, benzoylation at ...
Metalorganic chemical vapor deposition of layered structure oxides
(United States Patent and Trademark Office, 1995-12-26)
A method of fabricating high quality layered structure oxide ferroelectric thin films. The deposition process is a chemical vapor deposition process involving chemical reaction between volatile metal organic compounds of ...
Wide scanning spherical antenna
(United States Patent and Trademark Office, 1995-10-17)
A novel method for calculating the surface shapes for subreflectors in a suboptic assembly of a tri-reflector spherical antenna system is introduced, modeled from a generalization of Galindo-Israel's method of solving ...
Zero-current transition PWM converters
(United States Patent and Trademark Office, 1996-01-23)
A zero-current transition pulse-width modulated (ZCT-PWM) d.c.-d.c. converter allows minority-carrier semiconductor devices such as, for example, bipolar junction transistors (BJTs), insulated gate bipolar transistors ...
Method of forming multilayered electrodes for ferroelectric devices consisting of conductive layers and interlayers formed by chemical reaction
(United States Patent and Trademark Office, 1996-02-13)
A ferroelectric device is constructed using a bottom electrode composed of a conducting oxide such as RuO.sub.x, on a substrate such as silicon or silicon dioxide. A ferroelectric material such as lead zirconate titanate ...
Soft switched three-phase boost rectifiers and voltage source inverters
(United States Patent and Trademark Office, 1997-05-27)
A boost rectifier is provided with an ultra high speed diode in its direct current rail to reduce diode reverse recovery loss with or without implementing a soft switching technique. Full zero-voltage-transition (ZVT) as ...
Magnetic targeting device
(United States Patent and Trademark Office, 2010-07-13)
A device and method for targeting objects and specifically for locating intramedullary screw openings is described. The device and method include a target magnet and a sensor comprising an elliptical array of magnetoresistive ...
Transgenic non-human mammals expressing human coagulation factor VIII and von Willebrand factor
(United States Patent and Trademark Office, 2001-07-03)
A non-human transgenic mammalian animal, as described above, contains an exogenous double stranded DNA sequence stably integrated into the genome of the animal, which comprises cis-acting regulatory units operably linked ...
Method for protecting a mammalian host against infection by Brucella
(United States Patent and Trademark Office, 2001-07-24)
Vaccines against facultative intracellular pathogens are disclosed. A host is vaccinated with non-viable but metabolically active agents. The non-viable agents produce immunogenic components that elicit protective host ...
Method of producing star-like polymers from lignin
(United States Patent and Trademark Office, 1991-11-19)
A method of producing prepolymeric materials from lignin is disclosed. The method uses lignin which has been hydroxyalkyl modified, such that the lignin is substantially non-phenolic and solvent soluble and/or liquid. The ...