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For the Inventor, By the Inventor

Monheim, Germany

Theodor Pfister

This inventor holds 45 USPTO granted patents, primarily in Herbicide Chemistry. Top assignee: Bayer Aktiengesellschaft. Active years: 1980-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Theodor Pfister. Retrieved from https://idiyas.com/inventor/theodor-pfister

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

Calculating rank
USPTO Granted Patents = 45

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 5

Forward Citations = 93(Granted Patents)


Location History:

  • Wuppertal, DE (1980 - 1983)
  • Monheim, DE (1985 - 1993)

Company Filing History:

goldMedal45 out of 12,269 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1980-1993

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Areas of Expertise:
Herbicides
Sulphonylureas
Guanidine Derivatives
Plant Growth Regulators
Thio-ureas
Phenoxypropionyloxyalkane
Benzodisultams
Chlorinated Compounds
Triazine Derivatives
Phosphonates
Fungicides
Amino Compounds
45 patents (USPTO):Explore Patents
1. 5221317 - Herbicidal sulphonylaminoguanidinoazines (1993-06-22),
2. 5213608 - Herbicidal substituted sulphonylamidinohydrazones (1993-05-25),
3. 5167692 - Herricidal substituted sulphonylamidinohydrazones (1992-12-01),
4. 4990637 - 1-benzylsulphonyl-3-heteroaryl-(thio)urea herbicides (1991-02-05),
5. 4988379 - Sulphonyliso(thio)urea derivatives as herbicides (1991-01-29),
6. 4969948 - Herbicidal and plant growth-regulating substituted (1990-11-13),
7. 4952233 - Herbicidal sulphonylaminoguanidinoazines (1990-08-28),
8. 4927454 - Substituted 1-benzylsulphonyl-3-heteroaryl-(thio)urea herbicides (1990-05-22),
9. 4911752 - Halogenoalkoxy-phenylsulphonylisothioureidoazine herbicidal agents (1990-03-27),
10. 4880932 - Substituted guanidine derivatives (1989-11-14),
11. 4844730 - Substituted guanidine derivatives (1989-07-04),
12. 4840661 - Sulphonyliso(thio)urea derivatives and herbicidal use thereof (1989-06-20),
13. 4820337 - 1-(2-oxyaminosulphonylphenylsulphonyl)-3-triazinyl-ureas (1989-04-11),
14. 4806147 - Substituted 1-benzylsulphonyl-3-heteroaryl-(thio)urea herbicides (1989-02-21),
15. 4802910 - Herbicidal acylated sulphonylguanidines (1989-02-07),

Title: Theodor Pfister - Innovator in Herbicide Patents

Introduction

Theodor Pfister, an inventive mind located in Monheim, Germany, has made significant strides in the field of agricultural chemistry through his prolific work in herbicides. With an impressive portfolio of 45 patents, he stands as a vital contributor to innovations that address weed management and enhance crop production.

Latest Patents

Among his most recent patents are:

1. Herbicidal sulphonylaminoguanidinoazines - This patent covers the formulation of herbicidally active sulphonylamino guanidinoazines, which includes a diverse array of radicals such as alkyl, aralkyl, aryl, and hetaryl.

2. Herbicidal substituted sulphonylamidinohydrazones - This patent details the innovative use of substituted sulphonylamidinohydrazones, where R¹ can represent various substituted aryl, aralkyl, or heteroaryl groups.

Career Highlights

Theodor Pfister works for Bayer Aktiengesellschaft, a company renowned for its cutting-edge contributions to life sciences and agricultural solutions. His work focuses primarily on developing effective herbicide solutions aimed at maintaining crop yield and sustainability.

Collaborations

Throughout his career, Theodor has had the opportunity to collaborate with esteemed colleagues such as Robert R. Schmidt and Hans-Jochem Riebel. These collaborations have fostered an environment of shared innovation and have led to breakthroughs in herbicide development.

Conclusion

The contributions of Theodor Pfister to the field of herbicides cannot be understated. With his innovative patents and collaborations, he plays a crucial role in advancing agricultural technologies, ensuring a better future for crop management and environmental sustainability.

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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