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Frankfurt, Germany

Davy International Aktiengesellschaft

USPTO Granted Patents = 17

Forward Citations = 224

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25 inventors (with patents filed for the assignee):

Ghazi R Al-Muddarris (4 out of 5 patents)

Gerhard Keunecke (3 out of 6 patents)

Lothar Sterck (3 out of 3 patents)

4. Rainer Lell (3 out of 4 patents)

5. Reinhard Pachaly (2 out of 4 patents)

6. Adolf Stauffer (2 out of 5 patents)

7. Ovidiu Dicoi (2 out of 3 patents)

8. Anton Klopfer (2 out of 2 patents)

9. Walter Knobel (2 out of 2 patents)

10. Lars Hellmer (1 out of 4 patents)

11. Wilhelm Flesch (1 out of 2 patents)

12. John H Maude (1 out of 1 patent)

13. Alfred Vilshofer (1 out of 1 patent)

14. Jamil Anwer (1 out of 1 patent)

15. Karl Wintrup (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 4361538 - Continuous moving bed reactor for manufacture of high molecular weight (1982-11-30),

2. 4349354 - Furnace for gasifying granular fuels (1982-09-14),

3. 4329516 - Process for the production of methyl t-butyl ether (1982-05-11),

4. 4315904 - Process for removing hydrogen sulphide and sulphur dioxide from claus (1982-02-16),

5. 4314891 - Process for reconcentrating moist glycol (1982-02-09),

6. 4309402 - Process and apparatus for production of elemental sulfur (1982-01-05),

7. 4305919 - Process and plant equipment for the short-term propulsion of one or (1981-12-15),

8. 4302434 - Process for producing hydrogen and sulphur from hydrogen sulphide (1981-11-24),

9. 4296088 - Heat exchange techniques for the catalytic oxidation of gaseous sulfur (1981-10-20),

10. 4285871 - Process for continuously separating phthalic anhydride from the reaction (1981-08-25),

11. 4285870 - Process for continuously separating phthalic anhydride from the reaction (1981-08-25),

12. 4273620 - Process for reconcentrating moist glycol (1981-06-16),

13. 4263211 - Process for the recovery of maleic anhydride from gases containing (1981-04-21),

14. 4254246 - Column system process for polyester plants (1981-03-03),

15. 4249921 - Sulphur condensing apparatus (1981-02-10),

Company Overview

Davy International Aktiengesellschaft is a prominent player in the field of advanced engineering and technology solutions, primarily focusing on the development and manufacturing of specialized equipment and systems. The company operates within various sectors, including energy, environmental technology, and industrial automation, providing innovative solutions tailored to meet the needs of its clients. Headquartered in Frankfurt, Germany, Davy International leverages its expertise to enhance operational efficiency and sustainability across diverse industries.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

17 Patents

#49 in Frankfurt

#2,495 in Germany

#35,918 in the World

Frankfurt, Germany

Davy International Aktiengesellschaft

Forward Citations = 224

25 inventors:

Ghazi R Al-Muddarris (4 out of 5 patents)

Gerhard Keunecke (3 out of 6 patents)

Lothar Sterck (3 out of 3 patents)

4. Rainer Lell (3 out of 4 patents)

5. Reinhard Pachaly (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Davy International Aktiengesellschaft. Retrieved from https://idiyas.com/company/davy-international-ag

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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