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Recklinghausen, Germany

Firma Carl Still

USPTO Granted Patents = 33

Forward Citations = 427

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34 inventors (with patents filed for the assignee):

Johannes Knappstein (8 out of 11 patents)

Josef Stratmann (6 out of 11 patents)

Manfred Strobel (6 out of 11 patents)

4. Kurt Lorenz (5 out of 37 patents)

5. Horst Dungs (5 out of 40 patents)

6. Heinrich Weber (5 out of 30 patents)

7. Kurt Tippmer (4 out of 16 patents)

8. Dieter Stalherm (3 out of 10 patents)

9. Janos Bocsanczy (3 out of 6 patents)

10. Martin Bender (2 out of 3 patents)

11. Dieter Laufhutte (2 out of 7 patents)

12. Peter Speich (2 out of 3 patents)

13. Friedrich Thiersch (2 out of 6 patents)

14. Franz Beckmann (2 out of 7 patents)

15. Ludwig Offermann (1 out of 4 patents)

Core Competencies:

Coke Oven Batteries

Hydrogen Production

Gas Separation

Pollutant Removal

Regenerative Heating

Coke Charging

Coke Quenching

Blast Furnace Coal

Coking Process

Waste Heat Exhaust

Non-Abrasive Coke

Residual Gas Processing

33 patents: Sort by Forward Citations

1. 4290854 - Method of operating horizontal coke oven batteries (1981-09-22),

2. 4265709 - Method and apparatus for separating gases and solids during the (1981-05-05),

3. 4260460 - Device for quenching glowing coke (1981-04-07),

4. 4256540 - Regenerative heating system for horizontal coke oven batteries (1981-03-17),

5. 4247366 - Method of operating a coal predrying and heating plant in connection (1981-01-27),

6. 4242027 - Apparatus for charging coke oven furnaces of a coke oven battery (1980-12-30),

7. 4238293 - Maintenance and repair station for charging cars of coke oven batteries (1980-12-09),

8. 4235625 - Method of producing hydrogen and carbon-oxide-containing process gases (1980-11-25),

9. 4232566 - Switching lever mechanism (1980-11-11),

10. 4230594 - Method of treating spent reducing gas (1980-10-28),

11. 4220469 - Method for producing reduction gases consisting essentially of carbon (1980-09-02),

12. 4211611 - Coke oven coal charging device (1980-07-08),

13. 4190498 - System to acquire and monitor operating machinery positions for (1980-02-26),

14. 4187079 - Method for producing form coke (1980-02-05),

15. 4181502 - Method of producing form coke (1980-01-01),

Company Overview

Firma Carl Still is a prominent manufacturer specializing in advanced material handling and logistics solutions. Based in Recklinghausen, Germany, the company focuses on developing innovative systems for warehouse automation and intralogistics, enhancing efficiency in supply chain operations. With a commitment to quality and technological advancement, Carl Still integrates cutting-edge engineering practices to deliver tailored solutions that meet the evolving needs of various industries, including automotive, retail, and manufacturing.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

33 Patents

#1 in BOTH OF

#1,492 in DT

#20,147 in the World

Recklinghausen, Germany

Firma Carl Still

Forward Citations = 427

34 inventors:

Johannes Knappstein (8 out of 11 patents)

Josef Stratmann (6 out of 11 patents)

Manfred Strobel (6 out of 11 patents)

4. Kurt Lorenz (5 out of 37 patents)

5. Horst Dungs (5 out of 40 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Firma Carl Still. Retrieved from https://idiyas.com/company/firma-carl-still

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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