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For the Inventor, By the Inventor

Ames, IA, United States of America

Karl A Gschneidner, Jr

This inventor holds 15 USPTO granted patents and 1 published patent application, primarily in Magnetic Refrigeration. Top assignees: Iowa State University Research Foundation Inc., Atlas Scientific, The United States of America as Represented by the United States. Active years: 1987-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karl A Gschneidner, Jr. Retrieved from https://idiyas.com/inventor/karl-a-gschneidner-jr

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

Calculating rank
USPTO Granted Patents = 15 

% Patents Active = 60.0

Average Co-Inventor Count = 2.4

ph-index = 9

Forward Citations = 186(Granted Patents)


Company Filing History:

goldMedal13 out of 1,427 
 
Iowa State University Research Foundation Inc.
 patents
silverMedal1 out of 4 
 
Atlas Scientific
 patents
bronzeMedal1 out of 3,975 
 
The United States of America as Represented by the United States
 patents

Years Active: 1987-2019

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Areas of Expertise:
Magnetic Refrigerants
Cryocoolers
Lanthanide Alloys
Gd-Si-Ge Alloys
Ductile Intermetallics
Permanent Magnets
Colossal Magnetostriction
Giant Magnetoresistance
Active Magnetic Regenerator
Calorimetric Systems
Superconducting Crystals
Rare Earth Sulfides
15 patents (USPTO):Explore Patents
1. 10435770 - Method for producing La/Ce/MM/Y base alloys, resulting alloys, and battery electrodes (2019-10-08),
2. 9525176 - Method for producing La/Ce/MM/Y base alloys, resulting alloys and battery electrodes (2016-12-20),
3. 7549296 - Low temperature cryocooler regenerator of ductile intermetallic compounds (2009-06-23),
4. 7114340 - Method of making active magnetic refrigerant materials based on Gd-Si-Ge alloys (2006-10-03),
5. 6680663 - Permanent magnet structure for generation of magnetic fields (2004-01-20),
6. 6589366 - Method of making active magnetic refrigerant, colossal magnetostriction and giant magnetoresistive materials based on Gd-Si-Ge alloys (2003-07-08),
7. 6318090 - Ductile magnetic regenerator alloys for closed cycle cryocoolers (2001-11-20),
8. 5887449 - Dual stage active magnetic regenerator and method (1999-03-30),
9. 5806979 - Calorimetric system and method (1998-09-15),
10. 5743095 - Active magnetic refrigerants based on Gd-Si-Ge material and (1998-04-28),
11. 5537826 - Erbium-based magnetic refrigerant (regenerator) for passive cryocooler (1996-07-23),
12. 5462610 - Lanthanide Al-Ni base Ericsson cycle magnetic refrigerants (1995-10-31),
13. 5435137 - Ternary Dy-Er-Al magnetic refrigerants (1995-07-25),
14. 4824826 - Millimeter size single crystals of superconducting YBa.sub.2 Cu.sub.3 O.sub (1989-04-25),
15. H000197 - Ternary rare earth-lanthanide sulfides (1987-01-05),

Title: The Innovations of Karl A Gschneidner, Jr.

Introduction

Karl A Gschneidner, Jr. is a prominent inventor based in Ames, Iowa. He has made significant contributions to the field of materials science, particularly in the development of advanced alloys and battery technologies. With a total of 15 patents to his name, Gschneidner's work has had a lasting impact on various industries.

Latest Patents

One of Gschneidner's latest patents is a method for producing La/Ce/MM/Y base alloys and resulting battery electrodes. This carbothermic reduction method involves reducing a La-, Ce-, MM-, and/or Y-containing oxide in the presence of carbon and a source of a reactant element such as Si, Ge, Sn, Pb, As, Sb, Bi, and/or P. The process results in an intermediate alloy material that includes a majority of La, Ce, MM, and/or Y, along with a minor amount of the reactant element. This intermediate material is useful as a master alloy for creating negative electrode materials for metal hydride batteries, hydrogen storage alloys, and as an additive for commercial Mg and Al alloys, steels, cast irons, and superalloys. Additionally, it can be used in the reduction of SmO to Sm metal for applications in Sm-Co permanent magnets.

Career Highlights

Gschneidner has had a distinguished career, working with notable organizations such as the Iowa State University Research Foundation, Inc. and Atlas Scientific. His expertise in materials science has led to numerous advancements in alloy production and battery technology.

Collaborations

Throughout his career, Gschneidner has collaborated with esteemed colleagues, including Vitalij K Pecharsky and Alexandra O Pecharsky. These partnerships have further enhanced his research and innovation in the field.

Conclusion

Karl A Gschneidner, Jr. is a key figure in the realm of materials science, with a focus on innovative alloy production and battery technologies. His contributions continue to influence various industries and pave the way for future advancements.

Profile summary based on public USPTO records.
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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