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For the Inventor, By the Inventor

Frankfurt am Main, Germany

Alexander Doerges

USPTO Granted Patents = 13

Average Co-Inventor Count = 2.6

ph-index = 9

Forward Citations = 232(Granted Patents)


Location History:

  • Oberursel, DE (1979)
  • Frankfurt-am-Main, DE (1976 - 1985)

Company Filing History:

goldMedal13 out of 642 
 
Metallgesellschaft Aktiengesellschaft
 patents

Years Active: 1976-1985

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13 patents (USPTO):Explore Patents
1. 4532116 - Process of desulfurizing gases with an amine-containing absorbent (1985-07-30),
2. 4504449 - Process of regenerating absorbent solutions for sulfur-containing gases (1985-03-12),
3. 4368059 - Process of removing H.sub.2 S, CO.sub.2, COS and mercaptans from gases (1983-01-11),
4. 4318716 - Process of regenerating laden absorbents (1982-03-09),
5. 4297330 - Process of selectively desulfurizing gases (1981-10-27),
6. 4258019 - Process of regenerating alkali carbonate solutions formed by the (1981-03-24),
7. 4155985 - Process of purifying gases (1979-05-22),
8. 4144314 - Process for regenerating water-containing methanol (1979-03-13),
9. 4137294 - Process of scrubbing fuel synthesis gases to remove acid gases and (1979-01-30),
10. 4088735 - Process for purifying gases from the gasification of fossil fuels (1978-05-09),
11. 4011066 - Process of purifying gases produced by the gasification of solid or (1977-03-08),
12. 3966875 - Process for the desulfurization of gases (1976-06-29),
13. 3963825 - Process of desulfurizing hot gases (1976-06-15),

Title: Biography of Alexander Doerges

Introduction: Alexander Doerges is a prominent inventor based in Frankfurt am Main, Germany. He has made significant contributions to the field of gas desulfurization, holding a total of 13 patents. His innovative approaches have advanced the methods used to treat sulfur-containing gases.

Latest Patents: Among his latest patents is a process for desulfurizing gases with an amine-containing absorbent. This process involves scrubbing gas containing sulfur compounds, such as H₂S and COS, with an absorbent solution that includes at least one amine. The gas enters the scrubbing zone at a temperature between 25°C and 100°C, rising countercurrently to the scrubbing solution. The gas is then indirectly cooled, resulting in a condensate that is used as an absorbent solution. Another notable patent is for regenerating absorbent solutions for sulfur-containing gases. This process involves flashing and stripping laden absorbent solutions, which contain highly volatile secondary amines in an organic solvent, to effectively regenerate the absorbent for further use.

Career Highlights: Alexander Doerges is associated with Metallgesellschaft Aktiengesellschaft, where he has applied his expertise in gas treatment technologies. His work has been instrumental in developing efficient methods for desulfurizing gases, contributing to environmental sustainability.

Collaborations: Throughout his career, Alexander has collaborated with notable colleagues, including Johann Schlauer and

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