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For the Inventor, By the Inventor

Grand Rapids, MI, United States of America

Mannesmann Dematic Rapistan Corp.


USPTO Granted Patents = 18

Trademarks = 1

Forward Citations = 536

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31 inventors (with patents filed for the assignee):

goldMedal Dennis J Schuitema (5 out of 21 patents)

silverMedal Ricardo N Schiesser (3 out of 18 patents)

bronzeMedal John A Krznarich (3 out of 3 patents)

4.  Allan D Ewing (3 out of 3 patents)

5.  Gerald A Brouwer (2 out of 20 patents)

6.  Ronald J DeVree (2 out of 3 patents)

7.  James T Shearer, Jr (2 out of 6 patents)

8.  Rodolfo Gianvito (2 out of 2 patents)

9.  Kenneth J Kooistra (1 out of 17 patents)

10.  Ronald C Ehlert (1 out of 7 patents)

11.  Joseph G Mickley (1 out of 5 patents)

12.  David H Cotter (1 out of 26 patents)

13.  Frank W Veit (1 out of 16 patents)

14.  Curtis E LeMay (1 out of 15 patents)

15.  James A Medley (1 out of 2 patents)


18 patents:

1. 6269933 - Compact article unscrambler (2001-08-07),
2. 6152288 - High volume storage system with power and free drive (2000-11-28),
3. 6068105 - Low impact article diverter assembly (2000-05-30),
4. 6065588 - Contact assembly for accumulation conveyors (2000-05-23),
5. 6056107 - Compact article singulation conveyor (2000-05-02),
6. 6041909 - Conveyor sortation system with parallel divert (2000-03-28),
7. 6006893 - Extendable trailer loader/unloader with user interface section (1999-12-28),
8. 5927465 - Conveyor sortation system with parallel divert (1999-07-27),
9. 5918723 - Compact article singulation conveyor (1999-07-06),
10. 5860784 - High volume conveyor accumulator for warehouse (1999-01-19),
11. 5860512 - Sliding belt turn conveyor (1999-01-19),
12. 5857559 - Sliding belt turn conveyor (1999-01-12),
13. 5810158 - Belt accumulation conveyor (1998-09-22),
14. 5810154 - Low actuation force article sensor for conveyor (1998-09-22),
15. 5764014 - Automated guided vehicle having ground track sensor (1998-06-09),
Company Overview
Mannesmann Dematic Rapistan Corp., headquartered in Grand Rapids, MI, specializes in advanced automation and material handling solutions. The company focuses on developing innovative systems that enhance supply chain efficiency through integrated technologies. With a strong emphasis on robotics, conveyor systems, and warehouse management, it serves a diverse range of industries including manufacturing, distribution, and retail. The organization is committed to delivering cutting-edge solutions that optimize logistics and improve operational performance.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

18 Patents

#38 in Grand Rapids, MI

#645 in Michigan

#17,963 in US

#34,217 in the World

Grand Rapids, MI (US)
Grand Rapids, MI, United States of America

Mannesmann Dematic Rapistan Corp.

Forward Citations = 536

31 inventors:

goldMedal Dennis J Schuitema (5 out of 21 patents)

silverMedal Ricardo N Schiesser (3 out of 18 patents)

bronzeMedal John A Krznarich (3 out of 3 patents)

4.  Allan D Ewing (3 out of 3 patents)

5.  Gerald A Brouwer (2 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mannesmann Dematic Rapistan Corp.. Retrieved from https://idiyas.com/company/mannesmann-dematic-rapistan

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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