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For the Inventor, By the Inventor

San Diego, CA, United States of America

Quantum Design International, Inc.

Calculating rank
USPTO Granted Patents = 11

% Expired Patents = 9.1



Trademarks = 12

Forward Citations = 122

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10 inventors (with patents filed for the assignee):

goldMedal Jost Diederichs (6 out of 12 patents)

silverMedal Michael Bancroft Simmonds (5 out of 28 patents)

bronzeMedal William Neils (4 out of 4 patents)

4.  Dinesh Martien (4 out of 4 patents)

5.  Randall Black (4 out of 10 patents)

6.  Conrado Rillo Millan (1 out of 2 patents)

7.  Ronald Sager (1 out of 1 patent)

8.  Ronald T LaBorde (1 out of 6 patents)

9.  Nicholas J Neild (1 out of 1 patent)

10.  Andreas Amann (1 out of 2 patents)

11.  Conrad Rillo Millan (0 patent)

12.  Conrad Rillo Millan (0 patent)


11 patents:

1. 11396980 - Low vibration cryocooled cryostat (2022-07-26),
2. 10416253 - Conical access split magnet system (2019-09-17),
3. 10352617 - Apparatus and method for purifying gases and method of regenerating the same (2019-07-16),
4. 10113793 - Cryocooler-based gas scrubber (2018-10-30),
5. 9671159 - Liquefier with pressure-controlled liquefaction chamber (2017-06-06),
6. 9618257 - Gas-flow cryostat for dynamic temperature regulation using a fluid level sensor (2017-04-11),
7. 9310104 - Modular architecture for helium compressors (2016-04-12),
8. 9234691 - Method and apparatus for controlling temperature in a cryocooled cryostat using static and moving gas (2016-01-12),
9. 8992077 - Ultrasensitive ratiometric capacitance dilatometer and related methods (2015-03-31),
10. 8968677 - Frazil ice conjugate assay device and method (2015-03-03),
11. 8384504 - Superconducting quick switch (2013-02-26),
Company Overview
Quantum Design International, Inc. is a leading provider of advanced measurement and characterization systems, specializing in the fields of materials science and condensed matter physics. The company develops innovative solutions for both research and industrial applications, focusing on superconductivity, magnetism, and thermal properties. Based in San Diego, CA, Quantum Design is recognized for its commitment to quality and precision, enabling scientists and engineers to explore and understand complex material behaviors.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

11 Patents

#497 in San Diego, CA

#6,545 in California

#27,540 in US

#51,831 in the World

San Diego, CA (US)
San Diego, CA, United States of America

Quantum Design International, Inc.

Forward Citations = 122

10 inventors:

goldMedal Jost Diederichs (6 out of 12 patents)

silverMedal Michael Bancroft Simmonds (5 out of 28 patents)

bronzeMedal William Neils (4 out of 4 patents)

4.  Dinesh Martien (4 out of 4 patents)

5.  Randall Black (4 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Quantum Design International, Inc.. Retrieved from https://idiyas.com/company/quantum-design-international

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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