For the Inventor, By the Inventor

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Allentown, PA, United States of America

Shi-apd Cryogenics, Inc.

USPTO Granted Patents = 18

Trademarks = 2

Forward Citations = 64

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8 inventors (with patents filed for the assignee):

Ralph C Longsworth (10 out of 73 patents)

Jin Lin Gao (6 out of 11 patents)

Mingyao Xu (4 out of 69 patents)

4. Stephen Dunn (2 out of 7 patents)

5. Gary S Ash (1 out of 13 patents)

6. John Borchers (1 out of 3 patents)

7. Paul Nickelsberg (1 out of 3 patents)

8. Isamu Dekiya (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 8783045 - Reduced input power cryogenic refrigerator (2014-07-22),

2. 8187370 - Horizontal bulk oil separator (2012-05-29),

3. 7997088 - Hybrid spool valve for multi-port pulse tube (2011-08-16),

4. 7674099 - Compressor with oil bypass (2010-03-09),

5. 7568351 - Multi-stage pulse tube with matched temperature profiles (2009-08-04),

6. 7549295 - Three track valve for cryogenic refrigerator (2009-06-23),

7. 7509814 - Compact integrated buffer for pulse tube refrigerator (2009-03-31),

8. 7497084 - Co-axial multi-stage pulse tube for helium recondensation (2009-03-03),

9. 7451652 - Interrupted DC operation of thermocouple vacuum gauge (2008-11-18),

10. 7305835 - Pulse tube cooling by circulation of buffer gas (2007-12-11),

11. 7296436 - Cryorefrigerator contaminant removal (2007-11-20),

12. 7201004 - Panels for pulse tube cryopump (2007-04-10),

13. 7191600 - Fast warm up pulse tube (2007-03-20),

14. 7165406 - Integral pulse tube refrigerator and cryopump (2007-01-23),

15. 7114341 - Cryopump with two-stage pulse tube refrigerator (2006-10-03),

Shi-APD Cryogenics, Inc. is a leading provider of cryogenic equipment and solutions. With expertise in cryogenic technologies, we offer a wide range of products for various industries including healthcare, research, and manufacturing. Our products include cryogenic storage containers, cryogen freezers, and liquid nitrogen generators. We pride ourselves on delivering high-quality and reliable cryogenic equipment to meet the ever-growing demands of our customers. Visit our website to learn more about our innovative solutions and how we can assist you in your cryogenic needs.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

18 Patents

#13 in Allentown, PA

#654 in Pennsylvania

#17,417 in US

#33,187 in the World

Allentown, PA, United States of America

Shi-apd Cryogenics, Inc.

Forward Citations = 64

8 inventors:

Ralph C Longsworth (10 out of 73 patents)

Jin Lin Gao (6 out of 11 patents)

Mingyao Xu (4 out of 69 patents)

4. Stephen Dunn (2 out of 7 patents)

5. Gary S Ash (1 out of 13 patents)

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