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For the Inventor, By the Inventor

Fort Wayne, IN, United States of America

L.h. Carbide Corporation


USPTO Granted Patents = 40

% Expired Patents = 12.5


Trademarks = 3

Forward Citations = 571

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8 inventors (with patents filed for the assignee):

goldMedal Thomas R Neuenschwander (37 out of 38 patents)

silverMedal Barry Andrew Lee (9 out of 9 patents)

bronzeMedal Trevor Hirst (2 out of 2 patents)

4.  Timothy L Schrank (2 out of 2 patents)

5.  Steven D Shane (1 out of 1 patent)

6.  Doug Brenneke (1 out of 1 patent)

7.  Delno C Abnet (1 out of 4 patents)

8.  Rick O Habegger (1 out of 2 patents)


Core Competencies:
Die Assembly
Lamina Stacks
Laminated Magnetic Core
Progressive Stamping
Ignition Coil Assembly
Coreweighing System
Manufacturing Method
Interlocked Core
Stock Material
Laminated Parts
Dual Action Indexing
Anneal Penetration

40 patents:

1. 9685264 - Die assembly and method for manufacturing wound motor laminated article (2017-06-20),
2. 9479034 - Continuously formed annular laminated article and method for its manufacture (2016-10-25),
3. 9099897 - Method for connecting end sections of an annular laminated article and articles made therefrom (2015-08-04),
4. 8786158 - Continuously formed annular laminated article and method for its manufacture (2014-07-22),
5. 7676906 - Method for manufacturing lamina stacks from a plurality of separate strips of stock material (2010-03-16),
6. 7600312 - Die assembly for manufacturing lamina stacks that include formed features (2009-10-13),
7. 7337531 - Die assembly and method for manufacturing lamina stacks from a plurality of separate strips of stock material (2008-03-04),
8. 7062841 - Method of manufacturing a formable laminated stack in a progressive die assembly having a choke (2006-06-20),
9. 6984913 - Lamination stack with center interlock (2006-01-10),
10. 6877214 - Method of manufacturing a stack of laminations (2005-04-12),
11. 6745458 - Laminated magnetic core and method for making (2004-06-08),
12. 6742239 - Progressive stamping die assembly having transversely movable die station and method of manufacturing a stack of laminae therewith (2004-06-01),
13. 6725756 - Two-piece metal punch construction (2004-04-27),
14. 6636137 - Ignition coil assembly (2003-10-21),
15. 6530142 - Dual action indexing system and method for a die assembly (2003-03-11),
Company Overview
L.H. Carbide Corporation, based in Fort Wayne, Indiana, specializes in the development and manufacturing of advanced laminated articles and die assemblies. The company focuses on innovative solutions in lamina stacks, progressive die assembly, and ignition coil assembly, catering to various industrial applications. With expertise in magnetic core manufacturing and advanced indexing systems, L.H. Carbide is committed to delivering high-quality products that enhance operational efficiency and performance in the manufacturing sector.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

40 Patents

#8 in Fort Wayne, IN

#131 in Indiana

#8,618 in US

#17,048 in the World

Fort Wayne, IN (US)
Fort Wayne, IN, United States of America

L.h. Carbide Corporation

Forward Citations = 571

8 inventors:

goldMedal Thomas R Neuenschwander (37 out of 38 patents)

silverMedal Barry Andrew Lee (9 out of 9 patents)

bronzeMedal Trevor Hirst (2 out of 2 patents)

4.  Timothy L Schrank (2 out of 2 patents)

5.  Steven D Shane (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: L.h. Carbide Corporation. Retrieved from https://idiyas.com/company/l-h-carbide

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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