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For the Inventor, By the Inventor

Cologne, Germany

Harold Heller

This inventor holds 16 USPTO granted patents, primarily in Ion Exchange Technology. Top assignee: Bayer Aktiengesellschaft. Active years: 1976-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Harold Heller. Retrieved from https://idiyas.com/inventor/harold-heller

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

Calculating rank
USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 6

Forward Citations = 115(Granted Patents)


Location History:

  • Cologne, DE (1976 - 1995)
  • Koln, DE (1995 - 1997)

Company Filing History:

goldMedal16 out of 12,269 
 
Bayer Aktiengesellschaft
 patents

Years Active: 1976-1997

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Areas of Expertise:
Anion Exchangers
Cation Exchange Resins
Ion Exchanger Fertilizers
Water Treatment
Synthetic Resins
Heavy Metal Separation
Nitrogenous Fertilizers
Poly(meth)acrylamide
16 patents (USPTO):Explore Patents
1. 5612383 - Weakly basic anion exchangers, processes for their preparation by (1997-03-18),
2. 5441646 - Process of removing sulfate ions from water with a poly(meth)acrylamide (1995-08-15),
3. 5414020 - Process for the preparation of anion exchange resins of the (1995-05-09),
4. 5175193 - Process for the preparation of weakly acid cation exchange resins (1992-12-29),
5. 4988738 - Process for the preparation of bifunctional anion exchange resins, new (1991-01-29),
6. 4705637 - Process for reducing the wash water requirement of weakly basic anion (1987-11-10),
7. 4469502 - Ion exchanger fertilizers and a process for supplying plants with (1984-09-04),
8. 4402725 - Fertilizers (1983-09-06),
9. 4396412 - Ion exchanger fertilizers (1983-08-02),
10. 4319015 - Synthetic resins based on crosslinked copolymers of monovinyl and (1982-03-09),
11. 4115261 - Process for treating drinking water and sewage (1978-09-19),
12. 4083712 - Nitrogenous fertilizer compositions (1978-04-11),
13. 4077918 - Process for the preparation of anion exchangers by aminoalkylation of (1978-03-07),
14. 4025705 - Insoluble adsorber resin suitable for treating drinking water and sewage (1977-05-24),
15. 3994719 - Resins for separating heavy metals consisting of (1976-11-30),

Title: Harold Heller: Innovator in Anion Exchange Technology

Introduction

Harold Heller is a distinguished inventor based in Cologne, Germany. He has made significant contributions to the field of anion exchange technology, holding a total of 16 patents. His work focuses on improving the efficiency of processes for removing sulfate ions from various aqueous solutions.

Latest Patents

Among his latest patents, Heller has developed weakly basic anion exchangers of the poly(meth)acrylamide type. These exchangers are prepared through the aminolysis of poly(meth)acrylonitrile or poly(meth)acrylate with polyamines of defined composition. They exhibit an improved absorption capacity for sulfate ions, making them suitable for selectively removing sulfate ions from aqueous liquids, particularly sodium chloride brine and wastewater.

Career Highlights

Heller is currently employed at Bayer Aktiengesellschaft, where he continues to innovate in the field of anion exchange technology. His research has led to advancements that enhance the effectiveness of sulfate ion removal processes, contributing to environmental sustainability and water treatment solutions.

Collaborations

Some of his notable coworkers include Herbert Corte and Otto Netz. Their collaborative efforts have furthered the development of innovative solutions in the field.

Conclusion

Harold Heller's contributions to anion exchange technology and his numerous patents underscore his role as a leading inventor in this specialized field. His work not only advances scientific knowledge but also has practical applications in environmental management.

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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