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For the Inventor, By the Inventor

Hanau, Germany

Axel Kleemann

This inventor holds 81 USPTO granted patents, primarily in Organic Chemistry (CPC class 568771). Top assignees: Degussa Aktiengesellschaft, Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, Asta Pharma Aktiengesellschaft. Active years: 1977-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Axel Kleemann. Retrieved from https://idiyas.com/inventor/axel-kleemann

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 81

% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 11

Forward Citations = 361(Granted Patents)

Forward Citations (Not Self Cited) = 343(Dec 10, 2025)


Inventors with similar research interests:


    Location History:

    • Hanau, DE (1977 - 1988)
    • Muehlheim, DE (1989 - 1990)
    • Muhlheim, DE (1986 - 1991)

    Company Filing History:

    goldMedal65 out of 1,694 
     
    Degussa Aktiengesellschaft
     patents
    silverMedal13 out of 343 
     
    Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler
     patents
    bronzeMedal1 out of 29 
     
    Asta Pharma Aktiengesellschaft
     patents
    4. 1 out of 6 
     
    Asta-Werke Aktiengesellschaft, Chemische Fabrik
     patents
    5. 1 out of 1 
     
    Degussa Akteinsellschaft
     patent

    Years Active: 1977-1991

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    Areas of Expertise:
    Hydrogen Peroxide
    Amino Acids
    Dithiolan Compounds
    Cycloaliphatic Compounds
    Optically Active Salts
    Dihydroxybenzenes
    Thiosemicarbazide
    Catalytic Epoxidation
    Cyanopyrazine
    Racemization
    Ketoamines
    Hydroquinone
    81 patents (USPTO):Explore Patents
    1. 5041655 - Method of preparing 1,6-di(N.sup.3 -cyano-N.sup.1 -guanidino) hexane (1991-08-20),
    2. 4966732 - Process for the production of 1,2-dithiolan-3-pentanoic acid (thioctic (1990-10-30),
    3. 4946836 - Nitrogen-containing cyclo-aliphatic compounds having an amino radical (1990-08-07),
    4. 4914208 - Optically active salts of a substituted thiazolidine-4-carboxylate and (1990-04-03),
    5. 4845252 - Method for the catalytic epoxidation of olefins with hydrogen peroxide (1989-07-04),
    6. 4827029 - Process for the isolation of L-amino acids (1989-05-02),
    7. 4824987 - Method of preparing m-trifluoromethylphenyl acetonitrile (1989-04-25),
    8. 4800044 - Intermediates for the production of 1,2-dithiolan acid (thioctic acid) (1989-01-24),
    9. 4772749 - Process for the recovery of malic acid (1988-09-20),
    10. 4760199 - Process for the production of non-aqueous hydrogen peroxide solutions (1988-07-26),
    11. 4751298 - Production of 1-(3-hydroxy-propyl)-1,4-diazepane and (1988-06-14),
    12. 4728743 - Process for the production of 3-oxonitriles (1988-03-01),
    13. 4716247 - Process for the production of thiosemicarbazide (1987-12-29),
    14. 4716242 - Salts of oxazaphosphorine derivatives (1987-12-29),
    15. 4716237 - Process for the production of 3-oxonitriles (1987-12-29),

    Title: The Innovative Journey of Axel Kleemann

    Introduction: Axel Kleemann, a visionary inventor hailing from Hanau, Germany, has made significant contributions to the field of technology and innovation.

    Latest Patents: Axel Kleemann holds several patents in various technological domains, showcasing his continuous commitment to pushing the boundaries of innovation.

    Career Highlights: Throughout his illustrious career, Axel Kleemann has demonstrated a keen ability to transform groundbreaking ideas into tangible inventions that have the potential to revolutionize industries.

    Collaborations: Axel Kleemann has collaborated with leading research institutions, universities, and innovative companies to further develop his inventions and bring them to the market, solidifying his reputation as a forward-thinker in the world of innovation.

    Conclusion: Axel Kleemann's relentless pursuit of innovation and his passion for creating solutions to complex problems have established him as a prominent figure in the realm of inventors, inspiring future generations to think outside the box and pursue their inventive dreams.

    Profile summary based on public USPTO records.
    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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