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For the Inventor, By the Inventor

Allentown, PA, United States of America

Igc-Apd Cryogenics


USPTO Granted Patents = 2

Forward Citations = 38

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2 inventors (with patents filed for the assignee):

goldMedal Ralph C Longsworth (1 out of 74 patents)

silverMedal Jin Lin Gao (1 out of 1 patent)


2 patents:

1. 6715300 - Pulse tube integral flow smoother (2004-04-06),
2. 6256998 - Hybrid-two-stage pulse tube refrigerator (2001-07-10),
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USPTO Data Jan 1 1976 - Sep 22 2026

2 Patents

#66 in Allentown, PA

#3,421 in Pennsylvania

#94,680 in US

Allentown, PA (US)
Allentown, PA, United States of America

Igc-Apd Cryogenics

Forward Citations = 38

2 inventors:

goldMedal Ralph C Longsworth (1 out of 74 patents)

silverMedal Jin Lin Gao (1 out of 1 patent)

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