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Frankfurt, undefined

Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler

USPTO Granted Patents = 343

Trademarks = 9

Forward Citations = 3,388

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328 inventors (with patents filed for the assignee):

Gerd Schreyer (37 out of 41 patents)

Heribert Offermanns (36 out of 37 patents)

Werner Schwarze (25 out of 34 patents)

4. Gerhard Morlock (16 out of 23 patents)

5. Heinz Friedrich (14 out of 27 patents)

6. Helmut Knorre (14 out of 22 patents)

7. Lothar Rothbuhr (14 out of 21 patents)

8. Herbert Klenk (13 out of 30 patents)

9. Axel Kleemann (13 out of 81 patents)

10. Helmut Beschke (13 out of 18 patents)

11. Paul Scherberich (13 out of 16 patents)

12. Gunter Turk (11 out of 18 patents)

13. Edgar Koberstein (11 out of 52 patents)

14. Walter Von Bebenburg (11 out of 11 patents)

15. Hans B Wagner (11 out of 11 patents)

Core Competencies:

Oligosulphides

Herbicidal Derivatives

Carbon Black Production

Exhaust Gas Purification

Epoxide Purification

Nicotinamide Synthesis

Silicic Acid

Catalytic Purification

Waste Water Detoxification

Aluminosilicates

Cyanuric Chloride

Thermoplastic Mixtures

343 patents: Sort by Forward Citations

1. 4408064 - Bis-(silylethyl)-oligosulphides and process for their production (1983-10-04),

2. 4402733 - Herbicidally active 1,2,4-triazin-5-one derivatives (1983-09-06),

3. 4379871 - Process for the production of carbon black containing pigment-synthetic (1983-04-12),

4. 4369096 - Process for the purification of epoxides (1983-01-18),

5. 4366138 - Carbon black useful for pigment for black lacquers (1982-12-28),

6. 4360682 - Stabilizing caprolactones with dihydroxybenzenes (1982-11-23),

7. 4353208 - Exhaust gas purification apparatus for an internal combustion engine of (1982-10-12),

8. 4340490 - Process for the detoxification of waste water containing phenol, phenol (1982-07-20),

9. 4339616 - Process for the manufacture of 1,2-diols having at least 4 carbon atoms (1982-07-13),

10. 4332940 - Process for the production of 2,3-cycloalkenopyridines (1982-06-01),

11. 4322250 - Mastic asphalt mixture (1982-03-30),

12. 4318894 - Apparatus for the catalytic purification of exhaust gases (1982-03-09),

13. 4314064 - Process for the production of nicotinamide (1982-02-02),

14. 4308673 - Stiffening and likewise non-slip material for the heel region of shoes (1982-01-05),

15. 4308074 - Precipitated silicic acid, method and compositions containing same (1981-12-29),

Deutsche Gold- und Silber-Scheideanstalt vormals Roessler (Degussa) is a renowned company in Germany specializing in precious metals. With years of experience, Degussa is trusted for buying, selling, and storing gold, silver, platinum, and palladium. They offer a wide range of products including bars, coins, and jewelry, ensuring high quality and authenticity. Their website provides information about their services, product offerings, and expert insights into the precious metals market.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

343 Patents

#3 in Frankfurt

#181 in D

#2,566 in the World

Frankfurt, undefined

Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler

Forward Citations = 3,388

328 inventors:

Gerd Schreyer (37 out of 41 patents)

Heribert Offermanns (36 out of 37 patents)

Werner Schwarze (25 out of 34 patents)

4. Gerhard Morlock (16 out of 23 patents)

5. Heinz Friedrich (14 out of 27 patents)

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