For the Inventor, By the Inventor

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Brookfield, WI, United States of America

Koehring Company

USPTO Granted Patents = 69

Trademarks = 1

Forward Citations = 1,103

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72 inventors (with patents filed for the assignee):

Eugene C Briggs (10 out of 19 patents)

Robert F Shaftner (9 out of 9 patents)

Raud A Wilke (3 out of 18 patents)

4. Robert D Nicholson (3 out of 6 patents)

5. C Ranjan Salani (3 out of 3 patents)

6. Thomas G Bishop (3 out of 8 patents)

7. Eugene A Sousek (3 out of 9 patents)

8. William C Wellbaum (3 out of 3 patents)

9. Harry J Giambrone (3 out of 3 patents)

10. Gary L Jackson (3 out of 3 patents)

11. Chittaranjan Salani (3 out of 3 patents)

12. Michael A Kagan (3 out of 3 patents)

13. Walter E Meyer (3 out of 4 patents)

14. Marianne C Green (3 out of 3 patents)

15. George A Kruder (2 out of 12 patents)

Core Competencies:

Hydraulic Control Valve

Portable Heater

Soil Stabilizer

Electrohydraulic Servovalve

Vibratory Roller

Hydraulic Valve

Cutting Reel Grinder

Mobile Concrete Batch Plant

Injection Molding

Rotary Cutting System

Cable Laying Plow

Boom Length Sensing

69 patents: Sort by Forward Citations

1. 5125720 - Mounting arrangement for cutter socket (1992-06-30),

2. D300147 - Printer stand (1989-03-07),

3. 4720207 - Segmented rotor (1988-01-19),

4. 4632630 - Forklift attachment (1986-12-30),

5. 4621871 - Quickly replaceable cutter socket (1986-11-11),

6. 4570672 - Hydraulic control valve with independently operable bypass valve (1986-02-18),

7. 4561463 - Sectional valve having dual pressure relief (1985-12-31),

8. 4532914 - Portable LP space heater (1985-08-06),

9. D276261 - Front panel for a wick heater (1984-11-06),

10. D276260 - Wick heater (1984-11-06),

11. 4474166 - Wick heaters (1984-10-02),

12. 4458763 - Soil stabilizer machine with recycler screen (1984-07-10),

13. 4443187 - Portable heater with integrated control system (1984-04-17),

14. 4421435 - Method and apparatus for applying a thin liquid film to a vibratory plate (1983-12-20),

15. D269522 - Drive unit for flexshaft vibrators (1983-06-28),

Company Overview

Koehring Company, based in Brookfield, WI, specializes in the development and manufacturing of advanced hydraulic systems. The company focuses on a range of technologies including hydraulic control valves, electrohydraulic servovalves, and portable heating solutions. Koehring's expertise extends to soil stabilization equipment, vibratory rollers, and mobile concrete batch plants, positioning it as a key player in the hydraulic engineering sector. Their innovative products cater to diverse industrial applications, enhancing operational efficiency and performance.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

69 Patents

#3 in Brookfield, WI

#122 in Wisconsin

#5,317 in US

#10,773 in the World

Brookfield, WI, United States of America

Koehring Company

Forward Citations = 1,103

72 inventors:

Eugene C Briggs (10 out of 19 patents)

Robert F Shaftner (9 out of 9 patents)

Raud A Wilke (3 out of 18 patents)

4. Robert D Nicholson (3 out of 6 patents)

5. C Ranjan Salani (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Koehring Company. Retrieved from https://idiyas.com/company/koehring-company

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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