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For the Inventor, By the Inventor

Leverkusen, Germany

Helmut Fiege

This inventor holds 85 USPTO granted patents, primarily in Organic Synthesis (CPC class 570208). Top assignees: Bayer Aktiengesellschaft, Bayeraktiengesellschaft, Haarmann & Reimer Gmbh. Active years: 1978-2002.

USPTO Granted Patents = 85

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 9

Forward Citations = 264(Granted Patents)

Forward Citations (Not Self Cited) = 245(Dec 10, 2025)


Inventors with similar research interests:


    Company Filing History:

    goldMedal83 out of 12,223 
     
    Bayer Aktiengesellschaft
     patents
    silverMedal1 out of 38 
     
    Bayeraktiengesellschaft
     patents
    bronzeMedal1 out of 113 
     
    Haarmann & Reimer Gmbh
     patents

    Years Active: 1978-2002

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    Areas of Expertise:
    Aryl Thiols
    Halogenated Compounds
    Amino Derivatives
    Hydrogenation
    Dinitrostilbene
    Hydroxypivalic Acid
    Piperazines
    Carbazole
    Nitrophenyl
    Sulfides
    Dicarbonates
    Thiosulphuric Acids
    85 patents (USPTO):Explore Patents
    1. 6500988 - Method for producing aryl thiols by hydrogenating diaryldisulphides (2002-12-31),
    2. 6433228 - Process for preparing 2-halogenated indan-1-ones (2002-08-13),
    3. 6355827 - Process for preparing 2-cyanoindan-1-ones (2002-03-12),
    4. 6271415 - S-(4-biphenyl)-thiosulphuric acids and their salts, method for producing the same and method for producing 4-mercaptobiphenyls (2001-08-07),
    5. 6133480 - Preparation of N-phenyl-1-naphthylamine (2000-10-17),
    6. 6093852 - Process for preparing 4,6-diamino-resorcinol dihydrochloride (2000-07-25),
    7. 6002041 - Process for preparing di-C.sub.1 - C.sub.4 -alkyl 5-nitro-isophthalates (1999-12-14),
    8. 5998628 - Non-explosive preparations of 1-hydroxybenzotriazole (1999-12-07),
    9. 5922874 - Process for preparing N-aryl-N'-alkyl-piperazines (1999-07-13),
    10. 5911962 - Process for the purification of phosphorus oxychloride (1999-06-15),
    11. 5872300 - Process for the preparation of 2-amino-6-chlorophenyl-alkylsulfanes, and (1999-02-16),
    12. 5872283 - Process for decarboxylation of halogenated aromatic carboxylic acids (1999-02-16),
    13. 5869735 - Process for the preparation of alkyl aryl ethers containing carboxyl (1999-02-09),
    14. 5859296 - Process for isolating hydroxypivalic acid from aqueous solution (1999-01-12),
    15. 5847236 - Process for the preparation of 2-chloro-4-methylphenol (1998-12-08),

    Title: Helmut Fiege - The Innovative Mind from Leverkusen

    Introduction: Helmut Fiege is a renowned inventor hailing from Leverkusen, Germany, known for his groundbreaking contributions to various fields.

    Latest Patents: Helmut Fiege holds several patents in the areas of pharmaceuticals, chemical engineering, and environmental technologies, showcasing his diverse expertise and innovative spirit.

    Career Highlights: With a career spanning over three decades, Helmut Fiege has worked with leading research institutions and multinational corporations, consistently pushing the boundaries of technological advancements.

    Collaborations: Throughout his career, Helmut Fiege has collaborated with top universities, research institutions, and industry experts, fostering a culture of innovation and knowledge sharing.

    Conclusion: Helmut Fiege's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a pioneering inventor in Leverkusen and beyond.

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