Cryostat having a magnet coil system, which comprises an under-cooled LTS section and an HTS section arranged in a separate helium tank
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 28, 2012
Grant Date -
Nov 26, 2009
app pub date -
Mar 7, 2007
filing date -
Mar 18, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A cryostat (1) with a magnet coil system including superconductors for the production of a magnet field B0 in a measuring volume (3) has a plurality of radially nested solenoid-shaped coil sections (4, 5, 6) which are electrically connected in series, at least one of which being an LTS section (5, 6) with a conventional low temperature superconductor (LTS) and at least one of which being an HTS section (4) including a high temperature superconductor (HTS), wherein the LTS section (5, 6) is located in a first helium tank (9) of the cryostat (1) along with liquid helium at a helium temperature TL<4 K. The apparatus is characterized in that the HTS section (4) is disposed radially within the LTS section (5, 6) in a separate helium tank (19) of the cryostat (1) having normal liquid helium and is separated from the LTS section (5, 6) by means of at least one wall disposed between the two helium tanks. An HTS coil section can be maintained in the cryostat in accordance with the invention over a long period of time and in a reliable fashion.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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FORSCHUNGSZENTRUM KARLSRUHE GMBH | 76133 KARLSRUHE |
International Classification(s)

- 2007 Application Filing Year
- H01F Class
- 718 Applications Filed
- 415 Patents Issued To-Date
- 57.80 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kasten, Arne | Karlsruhe, DE | 33 | 356 |
# of filed Patents : 33 Total Citations : 356 | |||
Roth, Gerhard | Rheinstetten, DE | 33 | 220 |
# of filed Patents : 33 Total Citations : 220 | |||
Schneider, Theo | Eggenstein-Leopoldshafen, DE | 2 | 21 |
# of filed Patents : 2 Total Citations : 21 |
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Patent Citation Ranking
- 4 Citation Count
- H01F Class
- 10.23 % this patent is cited more than
- 13 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Oct 05, 2020 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jun 01, 2020 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Dec 16, 2019 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Oct 16, 2015 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Apr 24, 2012 | I | Issuance | |
Apr 04, 2012 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 05, 2011 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Oct 08, 2009 | P | Published | |
May 12, 2007 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GAUDREAU, MARC;IBRAHIM, FAISAL;REEL/FRAME:019609/0878 Owner name: FORENSINK CORPORATION INC., CANADA Effective Date: May 12, 2007 |
Nov 17, 2005 | F | Filing | |
Nov 17, 2004 | PD | Priority Date |

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