% Expired Patents = 75.0

Forward Citations = 122

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3 inventors (with patents filed for the assignee):

Calvin J Brandt (9 out of 16 patents)

Bradley J Goldbeck (3 out of 3 patents)

Kenneth D Fritz (2 out of 2 patents)

12 patents: Sort by Forward Citations

1. 9701324 - Railcar positioning system for curved track (2017-07-11),

2. 9272719 - Ratcheting railcar indexer (2016-03-01),

3. 8479660 - Automated railcar gate operating system (2013-07-09),

4. 8250991 - Automated railcar gate operating system (2012-08-28),

5. 7934457 - Railcar positioning system (2011-05-03),

6. 7464651 - Bogey frame sensor for railcar mover (2008-12-16),

7. 7377219 - Spike-type railcar mover with optional gate opener (2008-05-27),

8. 6837168 - Indexer with self-powered carriage (2005-01-04),

9. 6748841 - Railroad hopper car gate operating system (2004-06-15),

10. 6668730 - Indexer carriage chain tension and dog control system (2003-12-30),

11. 6553916 - Car spotter drive (2003-04-29),

12. 6389984 - Independent dog operating system (2002-05-21),

Company Overview

Calbrandt, Inc. is a specialized manufacturer based in Delano, Minnesota, focusing on innovative solutions in the field of industrial automation and control systems. The company develops advanced technologies that enhance operational efficiency and reliability across various sectors. With a commitment to quality and precision, Calbrandt serves a diverse clientele, providing tailored products and services that meet the evolving needs of the manufacturing landscape. Their expertise spans multiple domains, including robotics and process optimization.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

12 Patents

#2 in Delano, MN

#735 in Minnesota

#25,557 in US

#48,163 in the World

Delano, MN, United States of America

Calbrandt, Inc.

Forward Citations = 122

3 inventors:

Calvin J Brandt (9 out of 16 patents)

Bradley J Goldbeck (3 out of 3 patents)

Kenneth D Fritz (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Calbrandt, Inc.. Retrieved from https://idiyas.com/company/calbrandt

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]