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For the Inventor, By the Inventor

Grand Rapids, MI, United States of America

Rapistan Demag Corporation


USPTO Granted Patents = 18

Forward Citations = 558

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21 inventors (with patents filed for the assignee):

goldMedal David H Cotter (6 out of 26 patents)

silverMedal Bernard H Woltjer (6 out of 11 patents)

bronzeMedal Curtis E LeMay (4 out of 15 patents)

4.  Phillip J Gilmore (4 out of 12 patents)

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

6.  Ricardo N Schiesser (2 out of 18 patents)

7.  Martin R Doane (2 out of 4 patents)

8.  Artemio Affaticati (1 out of 20 patents)

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

10.  Michael Terence Black (1 out of 99 patents)

11.  Arthur J Terpstra, Jr (1 out of 3 patents)

12.  Richard J Micheletti (1 out of 3 patents)

13.  James T Shearer, Jr (1 out of 6 patents)

14.  Michael L Nitschke (1 out of 1 patent)

15.  James F Hergenrother (1 out of 1 patent)


18 patents:

1. 5630495 - Conveyor system diverter components having friction-enhancing surfaces (1997-05-20),
2. 5588520 - Crossbelt sortation system (1996-12-31),
3. 5540323 - Modular pneumatic accumulation conveyor (1996-07-30),
4. 5531740 - Automatic color-activated scanning treatment of dermatological (1996-07-02),
5. 5531311 - Conveyor article propelling roller drive system (1996-07-02),
6. 5487462 - Extendable conveyor without base unit (1996-01-30),
7. 5452786 - High-speed paddle diverter (1995-09-26),
8. 5429225 - Modular pneumatic accumulation conveyor and method (1995-07-04),
9. 5423413 - Electrical cable support in extendable conveyor (1995-06-13),
10. 5415281 - High speed article unscrambler and aligner (1995-05-16),
11. 5358097 - Accumulation conveyor with retractable sensor (1994-10-25),
12. 5351809 - Multiple-stage extendable conveyor (1994-10-04),
13. 5275273 - Track intersection pin guide (1994-01-04),
14. 5267638 - Dual-servo control for conveyor induction systems (1993-12-07),
15. 5240101 - Multizone unscrambler (1993-08-31),
Company Overview
Rapistan Demag Corporation, based in Grand Rapids, MI, specializes in the design and manufacturing of material handling systems and equipment. The company focuses on providing innovative solutions for industries such as automotive, aerospace, and manufacturing, enhancing operational efficiency and productivity. With a strong emphasis on engineering excellence, Rapistan Demag develops advanced technologies that streamline logistics and improve workflow in various industrial applications, contributing to the evolution of automated systems.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

18 Patents

#38 in Grand Rapids, MI

#645 in Michigan

#17,952 in US

#34,187 in the World

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

Rapistan Demag Corporation

Forward Citations = 558

21 inventors:

goldMedal David H Cotter (6 out of 26 patents)

silverMedal Bernard H Woltjer (6 out of 11 patents)

bronzeMedal Curtis E LeMay (4 out of 15 patents)

4.  Phillip J Gilmore (4 out of 12 patents)

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

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Rapistan Demag Corporation. Retrieved from https://idiyas.com/company/rapistan-demag

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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