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For the Inventor, By the Inventor

Dormagen, Germany

Carl Metzger

This inventor holds 14 USPTO granted patents, primarily in Herbicidal Compositions. Top assignee: Bayer Aktiengesellschaft. Active years: 1976-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Carl Metzger. Retrieved from https://idiyas.com/inventor/carl-metzger

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

Calculating rank
USPTO Granted Patents = 14

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 4

Forward Citations = 38(Granted Patents)


Location History:

  • Wuppertal-Elberfeld, DE (1976 - 1978)
  • Wuppertal-Vohwinkel, DE (1978)
  • Wuppertal, DE (1976 - 1980)
  • Dormagen, DE (1976 - 1981)
  • Leverkusen, DE (1987)

Company Filing History:

goldMedal14 out of 12,269 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1976-1987

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Areas of Expertise:
Thiadiazole Compounds
Herbicidal Compositions
Plant Growth Regulators
Acylated Urea Compounds
N-Arylcarbamic Acid Esters
Cyclic N-Thiadiazolyl
Synergistic Herbicides
Phenyl-Imidazolyl Derivatives
Tetrasubstituted Urea
N-Substituted Amino Compounds
14 patents (USPTO):Explore Patents
1. 4639526 - N-substituted 5-amino-1,3,4-thiadiazoles (1987-01-27),
2. 4265832 - Preparation of anthranilamides (1981-05-05),
3. 4195181 - 1,3,4-Thiadiazole compounds and herbicidal compositions (1980-03-25),
4. 4154597 - 3-(1,3,4-Thiadiazol-2-yl)-5-acyloxy(carbamoyloxy)-hydantoin compounds (1979-05-15),
5. 4128412 - Herbicidal composition and method using (1978-12-05),
6. 4093447 - N-Arylcarbamic acid esters and plant growth regulant compositions and (1978-06-06),
7. 4058392 - Tetrasubstituted urea compounds and herbicidal compositions (1977-11-15),
8. 4049670 - N-(2-Ethylsulfonyl-1,3,4-thiadiazol-5-yl)-N-methyl-N'-methylurea (1977-09-20),
9. 4018924 - Phenyl-imidazolyl-acetamide derivatives (1977-04-19),
10. 3996042 - Synergistic herbicidal compositions (1976-12-07),
11. 3981714 - Cyclic N-thiadiazolyl-(2)-carboxylic acid compounds and herbicidal (1976-09-21),
12. 3978069 - Phenyl-imidazolyl-fatty acid derivatives (1976-08-31),
13. 3954785 - Acylated urea compounds and herbicidal compositions (1976-05-04),
14. 3931311 - N,N,N-trisubstituted N-halogenomethylurea and thiourea compounds and (1976-01-06),

Title: Carl Metzger: Innovator in Herbicidal Chemistry

Introduction

Carl Metzger is a notable inventor based in Dormagen, Germany. He has made significant contributions to the field of herbicidal chemistry, holding a total of 14 patents. His work focuses on the development of innovative compounds that possess herbicidal properties.

Latest Patents

Among his latest patents, Metzger has developed N-substituted 5-amino-1,3,4-thiadiazoles, which include 2-(alkyl, alkenyl, and alkylmercapto)-5-[N-(alkanoyl, chloroalkanoyl, alkoxycarbonyl, phenoxy carbonyl, N'-[alkyl and alkenyl]-aminocarbonyl, and N'-alkyl-N'-[alkyl and alkenyl]-aminocarbonyl)-amino]-1,3,4-thiadiazoles. These compounds are produced using conventional methods and are recognized for their herbicidal properties. Additionally, he has patented a process for the preparation of anthranilamides, which involves creating an anthranilamide of a specific formula where R1 and R2 can independently be hydrogen.

Career Highlights

Carl Metzger's career is marked by his innovative approach to chemical synthesis and his dedication to developing effective herbicides. His work has been instrumental in advancing agricultural chemistry and improving crop protection methods.

Collaborations

Metzger has collaborated with notable colleagues, including Ludwig Eue and Robert R. Schmidt, contributing to the success of various projects and enhancing the impact of their collective research.

Conclusion

Carl Metzger's contributions to herbicidal chemistry through his patents and collaborations highlight his role as a significant inventor in the field. His innovative work continues to influence agricultural practices and chemical research.

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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