Alexis P Malozemoff

6393690, May 28, 2002

Jul 20, 1999

09/358167

Gregory L. Snitchler - Shrewsbury MA
Alexis P. Malozemoff - Lexington MA
Craig J. Christopherson - South Grafton MA

American Superconductor Corpration - Westborough MA

H01L 3924

29599, 505431, 505433

The invention provides a multifilamentary superconducting composite article comprising multiple substantially electrically decoupled domains, each including one or more fine, preferably twisted filaments of a desired superconducting oxide material. In a preferred embodiment, the article comprises a matrix, which substantially comprises a noble metal, a conductive jacketing layer surrounding the matrix, a plurality of discrete filament decoupling layers, each comprising an insulating material, disposed within the matrix to separate the matrix into a plurality of substantially electrically decoupled domains; a plurality of filaments, each comprising a desired superconducting oxide, which are disposed within and essentially encapsulated by the matrix and chemically isolated thereby from the decoupling layers, each of the electrically decoupled domains containing at least one filament. It provides multifilamentary articles that exhibit high DC performance characteristics and AC performance markedly superior to any currently available for these materials. A process and intermediate for making the article are also provided.

6436317, Aug 20, 2002

May 26, 2000

09/579193

Alexis P. Malozemoff - Lexington MA
Alexander Otto - Chelmsford MA
Cornelis Leo Hans Thieme - Westborough MA
Martin W. Rupich - Framingham MA

American Superconductor Corporation - Westborough MA

H01B 102

2525191, 505230, 505231, 505238, 505701, 505704, 2525205, 1741251

Oxide bronze compositions and articles manufactured in accordance therewith are provided. The oxide bronze compositions have the general formula A BO , in which A comprises an alkali, alkaline earth or rare earth metal and in which A has a valence, m, equal to 1, 2 or 3, B comprises a transition metal having a valence, n, less than or equal to 6,0x1 on an atomic ratio basis and y=[(x)(m)+n]/2. High temperature superconducting devices incorporating such compositions are also provided. The superconducting devices include a substrate having a polycrystalline superconducting layer or filament deposited on top of or embedded in the substrate. The superconducting layer or filament is formed of the oxide bronze composition. In some embodiments, the oxide bronze layer is textured with a full-width-half-maximum of a pole figure of less than or equal to 20 degrees.

7674751, Mar 9, 2010

Jul 21, 2006

11/490779

Alexis P. Malozemoff - Lexington MA, US
Martin W. Rupich - Framingham MA, US
Douglas C. Folts - Baraboo WI, US

American Superconductor Corporation - Westborough MA

H01L 39/24
H01B 12/00
H01L 39/00

505430, 505431, 505471, 505230, 505231, 505236, 505728, 505930, 1741251, 29599, 427 62

A method of making a laminated superconductor wire includes providing an assembly, where the assembly includes a substrate; a superconductor layer overlaying a surface of the substrate, the superconductor layer having a defined pattern; and a cap layer; and slitting the assembly in accordance with the defined pattern of the superconductor layer to form a sealed wire. Slitting the assembly in accordance with the defined pattern may form multiple sealed wires, and the substrate may be substantially wider than the sealed wires.

7724482, May 25, 2010

Mar 20, 2007

11/688827

Douglas C. Folts - Baraboo WI, US
James Maguire - Andover MA, US
Jie Yuan - South Grafton MA, US
Alexis P. Malozemoff - Lexington MA, US

American Superconductor Corporation - Westborough MA

H02H 7/00

361 19, 361 939, 307147

A superconducting transformer system is configured to be included within a utility power grid having a known fault current level. The superconducting transformer system includes a non-superconducting transformer interconnected between a first node and a second node of the utility power grid. A superconducting transformer is interconnected between the first node and the second node of the utility power grid. The superconducting transformer and the non-superconducting transformer are electrically connected in parallel. The superconducting transformer has a lower series impedance than the non-superconducting transformer when the superconducting transformer is operated below a critical current level and a critical temperature. The superconducting transformer is configured to have a series impedance that is at least N times the series impedance of the non-superconducting transformer when the superconducting transformer is operated at or above one or more of the critical current level and the critical temperature. N is greater than 1 and is selected to attenuate, in conjunction with an impedance of the non-superconducting transformer, the known fault current level by at least 10%.

7816303, Oct 19, 2010

Jul 29, 2005

11/193262

Cornelis Leo Hans Thieme - Westborough MA, US
Alexis P. Malozemoff - Lexington MA, US
Martin W. Rupich - Framingham MA, US
Elliott D. Thompson - Coventry RI, US
Darren Verebelyi - Oxford MA, US

American Superconductor Corporation - Devens MA

H01L 39/24

505237, 505329, 505330, 505701, 505702, 428930

A laminated superconductor wire includes a superconductor wire assembly, which includes a first superconductor insert comprising a first high temperature superconductor layer overlaying a first substrate and a second superconductor insert comprising a second high temperature superconductor layer overlaying a second substrate. The first and second superconductor inserts are joined together at their respective substrates. An electrically conductive structure substantially surrounds the superconductor wire assembly.

7902461, Mar 8, 2011

Mar 20, 2007

11/688809

Douglas C. Folts - Baraboo WI, US
James Maguire - Andover MA, US
Jie Yuan - South Grafton MA, US
Alexis P. Malozemoff - Lexington MA, US

American Superconductor Corporation - Westborough MA

H01B 12/00

1741251, 174 154, 174 155, 505230, 505231, 505232

A cryogenically-cooled HTS cable is configured to be included within a utility power grid having a maximum fault current that would occur in the absence of the cryogenically-cooled HTS cable. The cryogenically-cooled HTS cable includes a continuous liquid cryogen coolant path for circulating a liquid cryogen. A continuously flexible arrangement of HTS wires has an impedance characteristic that attenuates the maximum fault current by at least 10%. The continuously flexible arrangement of HTS wires is configured to allow the cryogenically-cooled HTS cable to operate, during the occurrence of a maximum fault condition, with a maximum temperature rise within the HTS wires that is low enough to prevent the formation of gas bubbles within the liquid cryogen.

8532725, Sep 10, 2013

Jan 25, 2010

12/692793

Douglas C. Folts - Baraboo WI, US
James Maguire - Andover MA, US
Jie Yuan - South Grafton MA, US
Alexis P. Malozemoff - Lexington MA, US

American Superconductor Corporation - Devens MA

H01B 12/00
H02H 9/00

505230, 505231, 505850, 505856, 1741251, 361 19, 361 58

A method of controlling fault currents within a utility power grid is provided. The method may include coupling a superconducting electrical path between a first and a second node within the utility power grid and coupling a non-superconducting electrical path between the first and second nodes within the utility power grid. The superconducting electrical path and the non-superconducting electrical path may be electrically connected in parallel. The superconducting electrical path may have a lower series impedance, when operated below a critical current level, than the non-superconducting electrical path. The superconducting electrical path may have a higher series impedance, when operated at or above the critical current level, than the non-superconductor electrical path.

20050016759, Jan 27, 2005

Jul 21, 2003

10/624026

Alexis Malozemoff - Lexington MA, US
Darren Verebelyi - Oxford MA, US
John Scudiere - Bolton MA, US

H01B012/00

174125100

High temperature superconducting devices and related methods are disclosed.