Karl-Heinz Drexhage

This inventor holds 14 USPTO granted patents and 6 EPO patents. Top assignees: Atto-Tec Gmbh, Boehringer Mannheim Gmbh, Evotec Ag. Active years: 1993-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karl-Heinz Drexhage. Retrieved from https://idiyas.com/inventor/karl-heinz-drexhage

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

USPTO Granted Patents = 14

% Patents Active = 85.7

EPO Patents = 6 (Patent Applications = 5)

Average Co-Inventor Count = 3.7

ph-index = 5

Forward Citations = 112(Granted Patents)

Location History:

57076 Siegen, DE (2004)
Siegen, DE (1993 - 2021)

Company Filing History:

Boehringer Mannheim Gmbh

5. 3 out of 834,570

Other

patents

Years Active: 1993-2021

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11180657 - Polysulfonated fluorescence dyes (2021-11-23),

2. 9651490 - Amine-substituted tricyclic fluorescent dyes (2017-05-16),

3. 9035042 - Sulfonamide derivatives of polycyclic dyes used for analytical applications (2015-05-19),

4. 8846924 - Sulfonamide derivatives of polycyclic dyes used for analytical applications (2014-09-30),

5. 8785637 - Carboxamide-substituted dyes for analytical applications (2014-07-22),

6. 8614317 - Sulfonamide derivatives of polycyclic dyes used for analytical applications (2013-12-24),

7. 8530660 - Carboxamide-substituted dyes for analytical applications (2013-09-10),

8. 7935822 - Carboxamide-substituted dyes for analytical applications (2011-05-03),

9. 7101999 - Oxazine derivatives (2006-09-05),

10. 6828159 - Carbopyronine fluorescent dyes (2004-12-07),

11. 6737280 - Amidopyrylium fluorescence dyes (2004-05-18),

12. 6384914 - Method for optical detection of analyte molecules in a natural biological medium (2002-05-07),

13. 5750409 - Pentacyclic compounds and their use as absorption or fluorescent dyes (1998-05-12),

14. 5214164 - Cyanine dyes (1993-05-25),

Title: The Innovations of Karl-Heinz Drexhage

Introduction

Karl-Heinz Drexhage is a notable inventor based in Siegen, Germany. He has made significant contributions to the field of fluorescent dyes, holding a total of 14 patents. His work has advanced the detection of analytes through innovative chemical compounds.

Latest Patents

Among his latest patents are the development of polysulfonated fluorescence dyes. This invention relates to compounds characterized by substituents that include one or more sulfonic acid groups, which serve as marker groups for the detection of various analytes. Another significant patent involves amine-substituted tricyclic fluorescent dyes. This invention focuses on polycyclic compounds distinguished by an amine substituent on the central carbon atom of the chromophore, along with processes for their preparation and applications in analyte determination.

Career Highlights

Throughout his career, Karl-Heinz Drexhage has worked with Atto-tec GmbH, where he has contributed to the development of advanced fluorescent dye technologies. His expertise in this area has positioned him as a key figure in the field of chemical innovations.

Collaborations

He has collaborated with notable colleagues, including Jutta Arden-Jacob and Alexander Zilles, enhancing the scope and impact of his research.

Conclusion

Karl-Heinz Drexhage's contributions to the field of fluorescent dyes exemplify his innovative spirit and dedication to advancing scientific knowledge. His patents continue to influence the detection of analytes, showcasing the importance of his work in the scientific community.

Profile summary based on public USPTO records.