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Chemie Linz Aktiengesellschaft

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USPTO Granted Patents = 76

Trademarks = 1

Forward Citations = 389

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130 inventors (with patents filed for the assignee):

Gerhard Stern (7 out of 7 patents)

Karlheinz Wegleitner (6 out of 7 patents)

Rudolf Franzmair (5 out of 11 patents)

4. Engelbert Kloimstein (4 out of 12 patents)

5. Alfred Schmidt (4 out of 9 patents)

6. Ferdinand Weinrotter (4 out of 4 patents)

7. Rupert Schonbeck (4 out of 5 patents)

8. Wilhelm Dobramysl (4 out of 4 patents)

9. Hubert Czepel (4 out of 4 patents)

10. Stefan Pieh (3 out of 7 patents)

11. Hubert Mayr (3 out of 3 patents)

12. Walter Muller (3 out of 3 patents)

13. Leopold Golser (3 out of 3 patents)

14. Josef Krieger (3 out of 3 patents)

15. Dieter Binder (2 out of 35 patents)

Core Competencies:

Enzymatic Resolution

Thermoplastic Polyester

Amines Preparation

Isocyanic Acid

Glyoxylic Acid

Foamed Plastics

Noble Metals Recovery

Herbicidal Composition

Cement Production

Ammonia Recovery

Polyimides

Flame-Retardant Fiber

76 patents: Sort by Forward Citations

1. 5534436 - Enzymatic resolution of asymmetric alcohols by means of vinyl esters of (1996-07-09),

2. 5491255 - Process for the transesterification of dimethyl succinylsuccinate (1996-02-13),

3. 5475141 - Process for preparing primary amines from aldehydes (1995-12-12),

4. 5466429 - Process for preparing isocyanic acid from cyanuric acid (1995-11-14),

5. 5382649 - Thermoplastic polyester-imides from trimellitic acid, propanediphenol (1995-01-17),

6. 5378799 - Heat-stable polyimides and polyamide-imides with modified benzhydrol (1995-01-03),

7. 5015760 - Process for the preparation of glyoxylic acid and glyoxylic acid (1991-05-14),

8. 4837335 - Process for the preparation of pure (1989-06-06),

9. 4818760 - Derivatives of pyridylsulfinyl(benz-or thieno-)imidazoles and their use (1989-04-04),

10. 4778803 - Nitrogen-arylmethoxy-thiophene derivatives and acid addition salts (1988-10-18),

11. 4739082 - Enantiomerically pure mono acetal-protected diols, their preparation and (1988-04-19),

12. 4738754 - Method of recovering ammonia from an aqueous effluent which contains NH.sub (1988-04-19),

13. 4725665 - Use of salts of water-soluble (1988-02-16),

14. 4717512 - Preparation of acylated glycerophosphocholines and (1988-01-05),

15. 4707508 - Long-shelflife concentrated aqueous solutions of melamine-formaldehyde (1987-11-17),

Company Overview

Chemie Linz Aktiengesellschaft is a prominent player in the chemical industry, headquartered in Linz, Austria. The company specializes in a diverse range of chemical processes, focusing on innovative solutions such as enzymatic resolution and the preparation of amines. Its expertise extends to the production of thermoplastic polyesters, isocyanic acid, and glyoxylic acid, as well as the development of foamed plastics. Additionally, Chemie Linz is involved in the recovery of noble metals and the formulation of herbicidal compositions, contributing to advancements in sustainable chemical applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

76 Patents

#5 in Linz

#55 in Austria

#9,904 in the World

Chemie Linz Aktiengesellschaft

Forward Citations = 389

130 inventors:

Gerhard Stern (7 out of 7 patents)

Karlheinz Wegleitner (6 out of 7 patents)

Rudolf Franzmair (5 out of 11 patents)

4. Engelbert Kloimstein (4 out of 12 patents)

5. Alfred Schmidt (4 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chemie Linz Aktiengesellschaft. Retrieved from https://idiyas.com/company/chemie-linz-ag

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

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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