For the Inventor, By the Inventor

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Brookfield, WI, United States of America

Harnischfeger Engineers Inc.

USPTO Granted Patents = 17

Trademarks = 2

Forward Citations = 406

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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),

Harnischfeger Engineers Inc. is a leading engineering firm specializing in providing innovative solutions for complex engineering challenges. With a team of experienced professionals, we offer a wide range of services including structural design, civil engineering, and project management. Our commitment to quality and customer satisfaction sets us apart in the industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

17 Patents

#6 in Brookfield, WI

#435 in Wisconsin

#18,330 in US

#34,858 in the World

Brookfield, WI, United States of America

Harnischfeger Engineers Inc.

Forward Citations = 406

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)

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