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Easton, PA, United States of America

Si Handling Systems, Inc.

USPTO Granted Patents = 65

Trademarks = 4

Forward Citations = 1,534

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49 inventors (with patents filed for the assignee):

Peter H Rohrbach (6 out of 7 patents)

Charles E Jacoby (6 out of 8 patents)

Barry L Ziegenfus (5 out of 9 patents)

4. Craig F Sleep (5 out of 5 patents)

5. William L Brown (5 out of 5 patents)

6. Per E Lindquist (5 out of 5 patents)

7. Russell H Scheel (4 out of 9 patents)

8. Vercoe C Jones (3 out of 3 patents)

9. Robert A Hale (3 out of 3 patents)

10. Katsuhiro Nagahori (3 out of 3 patents)

11. James L Thatcher (3 out of 3 patents)

12. David A Clark (2 out of 2 patents)

13. James Werkheiser (2 out of 2 patents)

14. Phillip N Ross (2 out of 2 patents)

15. Larry L Reagan (2 out of 2 patents)

Core Competencies:

Automated Order Filling

Order Selection

Sortation System

Driverless Vehicle

Precision Location

Traffic Control

Conveyor Systems

Material Handling

Speed Control

Tugger Vehicle

Accumulation Systems

Shuttle Vehicle

65 patents: Sort by Forward Citations

1. 6505093 - Automated order filling method and system (2003-01-07),

2. 6208908 - Integrated order selection and distribution system (2001-03-27),

3. 5977501 - Sortation and sequencing system (1999-11-02),

4. 5720157 - Automatic order selection system and method of operating (1998-02-24),

5. 5271703 - Automatic order selection system capable of responding to simultaneous (1993-12-21),

6. 4817000 - Automatic guided vehicle system (1989-03-28),

7. 4798147 - Drive wheel adjuster for driverless vehicle (1989-01-17),

8. 4782760 - Vehicle precision location assembly (1988-11-08),

9. 4718350 - Small lightweight driverless vehicle (1988-01-12),

10. 4691641 - Vehicle accumulation system (1987-09-08),

11. 4664036 - Conveyor having curved track section (1987-05-12),

12. 4646649 - Driverless vehicle with floating mounted substrate, and precision (1987-03-03),

13. 4628823 - Vehicle speed control transition module and method (1986-12-16),

14. 4620280 - Intelligent driverless vehicle (1986-10-28),

15. 4619204 - Driverless tugger vehicle and system (1986-10-28),

SI Handling Systems, Inc. is a leading provider of material handling solutions. Established in 1963, the company specializes in the design and manufacturing of innovative custom material handling equipment, including automated systems, conveyors, lifts, and storage solutions. With a dedicated team of experts and state-of-the-art facilities, SI Handling Systems delivers efficient and reliable solutions to various industries such as automotive, aerospace, food and beverage, pharmaceutical, and more. Their commitment to quality, safety, and customer satisfaction has made them a trusted partner for companies seeking cutting-edge material handling solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

65 Patents

#8 in Easton, PA

#211 in Pennsylvania

#5,600 in US

#11,305 in the World

Easton, PA, United States of America

Si Handling Systems, Inc.

Forward Citations = 1,534

49 inventors:

Peter H Rohrbach (6 out of 7 patents)

Charles E Jacoby (6 out of 8 patents)

Barry L Ziegenfus (5 out of 9 patents)

4. Craig F Sleep (5 out of 5 patents)

5. William L Brown (5 out of 5 patents)

Please report any incorrect information to [email protected]

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