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Brookfield, WI, United States of America

Harnischfeger Engineers Inc.

Calculating rank

USPTO Granted Patents = 17

Trademarks = 2

Forward Citations = 407

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21 inventors (with patents filed for the assignee):

Kurt M Lloyd (7 out of 10 patents)

Craig A Devroy (4 out of 4 patents)

B Chuck Sorensen (3 out of 3 patents)

4. LaMar A Jones (3 out of 6 patents)

5. Stephen N Miskin (2 out of 2 patents)

6. Christopher L Roth (2 out of 2 patents)

7. Rodney O Kirby (2 out of 2 patents)

8. Dennis G Hueman (2 out of 2 patents)

9. James P Hrica (2 out of 2 patents)

10. Billy R Jackson (2 out of 2 patents)

11. Eric C Blom (1 out of 3 patents)

12. Keith O Jurkowski (1 out of 4 patents)

13. Duane J Bunchkowski (1 out of 1 patent)

14. Michael R Kotecki (1 out of 1 patent)

15. David A Kling (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 5405232 - Automatic storage and retrieval system (1995-04-11),

2. 5397211 - Automatic storage and retrieval system (1995-03-14),

3. 5385243 - Modular system for automatically staging letters in connection with a (1995-01-31),

4. 5361481 - Method of assembling an automatic storage and retrieval system (1994-11-08),

5. 5279393 - Automatic storage and retrieval machine with improved carriage side (1994-01-18),

6. 5170863 - Method and apparatus for acceleration and deceleration control of a (1992-12-15),

7. 5170713 - Wheel assembly for a storage and retrieval machine (1992-12-15),

8. 5141081 - Carriage brake for a storage and retrieval machine (1992-08-25),

9. 5091685 - Method and apparatus for controlling the shuttle of a storage and (1992-02-25),

10. 5067592 - Mast connecting structure (1991-11-26),

11. 5056625 - Low profile base for a storage and retrieval machine (1991-10-15),

12. 5048642 - Mast structure (1991-09-17),

13. 5044859 - Control system for a storage and retrieval machine (1991-09-03),

14. 5025987 - Rail securement apparatus (1991-06-25),

15. 5015140 - Shuttle guide for a storage and retrieval machine (1991-05-14),

Company Overview

Harnischfeger Engineers Inc., based in Brookfield, WI, specializes in the design and manufacture of advanced engineering solutions, particularly in the field of material handling and industrial equipment. The company focuses on innovative technologies that enhance operational efficiency and safety in various industries. With a commitment to quality and performance, Harnischfeger Engineers leverages its expertise to deliver tailored solutions that meet the evolving needs of its clients across diverse sectors.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

17 Patents

#7 in Brookfield, WI

#442 in Wisconsin

#18,927 in US

#36,017 in the World

Brookfield, WI, United States of America

Harnischfeger Engineers Inc.

Forward Citations = 407

21 inventors:

Kurt M Lloyd (7 out of 10 patents)

Craig A Devroy (4 out of 4 patents)

B Chuck Sorensen (3 out of 3 patents)

4. LaMar A Jones (3 out of 6 patents)

5. Stephen N Miskin (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Harnischfeger Engineers Inc.. Retrieved from https://idiyas.com/company/harnischfeger-engineers

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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