For the Inventor, By the Inventor

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Milwaukee, WI, United States of America

Pflow Industries, Inc.

USPTO Granted Patents = 24

% Expired Patents = 16.7

CIPO Patents = 1

Trademarks = 1

Forward Citations = 329

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9 inventors (with patents filed for the assignee):

Mark R Webster (12 out of 15 patents)

Gene M Barth (10 out of 10 patents)

Robert H Pfleger (8 out of 8 patents)

4. Craig S Schmidt (4 out of 4 patents)

5. Patrick J Kelnhofer (2 out of 2 patents)

6. Michael H Sohn (2 out of 2 patents)

7. Michael Reilly (1 out of 11 patents)

8. Robert H Plfeger (1 out of 1 patent)

9. August R Bergemann (1 out of 1 patent)

24 patents: Sort by Forward Citations

1. 11345576 - Hinged carriage deck for vertical reciprocating conveyor (2022-05-31),

2. 11059678 - Barrel elevator including shielded actuation mechanisms (2021-07-13),

3. 10913635 - System for chain chordal action suppression (2021-02-09),

4. 10183840 - System for chain chordal action suppression (2019-01-22),

5. 8789661 - Visual warning barrier for door assembly used in a vertical lifting system (2014-07-29),

6. 8328003 - Shopping cart conveyor with gate assembly (2012-12-11),

7. 8075237 - Multi-level vehicle lift (2011-12-13),

8. 7931136 - Jam sensor for shopping cart conveyor (2011-04-26),

9. 7779992 - Shopping cart conveyor system with pivoting lug (2010-08-24),

10. 7453358 - Shopping cart conveyor with gated access (2008-11-18),

11. 7131532 - Belt attachment device and method (2006-11-07),

12. 6896125 - Belt attachment device and method (2005-05-24),

13. 6644210 - Shopping cart conveyor with front wheel alignment and turning system (2003-11-11),

14. 6490979 - Inclined shopping cart conveyor system (2002-12-10),

15. 6394260 - Conveyor system including roller-guided carriage assemblies (2002-05-28),

Pflow Industries, Inc. is a leading provider of vertical reciprocating conveyors, specializing in material handling solutions that enhance operational efficiency across various industries. Based in Milwaukee, Wisconsin, the company focuses on innovative designs that cater to the unique needs of its clients, ensuring safe and reliable transportation of goods within facilities. Pflow's expertise extends to custom engineering, allowing for tailored solutions that integrate seamlessly into existing workflows, thereby optimizing space and productivity.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Pflow Industries, Inc.

24 Patents

#60 in Milwaukee, WI

#329 in Wisconsin

#13,872 in US

#26,628 in the World

Milwaukee, WI, United States of America

Pflow Industries, Inc.

Forward Citations = 329

9 inventors:

Mark R Webster (12 out of 15 patents)

Gene M Barth (10 out of 10 patents)

Robert H Pfleger (8 out of 8 patents)

4. Craig S Schmidt (4 out of 4 patents)

5. Patrick J Kelnhofer (2 out of 2 patents)

Please report any incorrect information to [email protected]

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