% Expired Patents = 60.0

EPO Patents = 3

Forward Citations = 31

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11 inventors (with patents filed for the assignee):

Ulf Grawunder (4 out of 23 patents)

Jorn Stitz (2 out of 4 patents)

Michael Mach (1 out of 4 patents)

4. Luis Martin-Parras (1 out of 1 patent)

5. Sonja Potzsch (1 out of 1 patent)

6. Nadja Spindler (1 out of 1 patent)

7. Heinrich Sticht (1 out of 2 patents)

8. Anna-Katharina Wiegers (1 out of 1 patent)

9. Thomas Winkler (1 out of 1 patent)

10. Jörn Stitz (1 out of 1 patent)

11. Georg Friedrich Melchers (1 out of 1 patent)

12. Sonja PÖTZSCH (0 patent)

5 patents: Sort by Forward Citations

1. 9346874 - Binding members for human cytomegalovirus (2016-05-24),

2. 8748353 - Identification of antigen or ligand-specific binding proteins (2014-06-10),

3. 8716194 - Identification of antigen or ligand-specific binding proteins (2014-05-06),

4. 8663989 - Retroviral vector particles and methods for their generation and use (2014-03-04),

5. 7741077 - Method for the generation of genetically modified vertebrate precursor lymphocytes and use thereof for the production of heterologous binding proteins (2010-06-22),

Company Overview

4-antibody Ag is a biotechnology company specializing in the development and production of antibodies for therapeutic and diagnostic purposes. With a focus on innovation and quality, we provide cutting-edge solutions for a wide range of diseases and applications. Our team of experts works tirelessly to deliver high-quality products and services to our clients worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#56 in Jena

#6,098 in Germany

Jena, Germany

4-Antibody Ag

Forward Citations = 31

11 inventors:

Ulf Grawunder (4 out of 23 patents)

Jorn Stitz (2 out of 4 patents)

Michael Mach (1 out of 4 patents)

4. Luis Martin-Parras (1 out of 1 patent)

5. Sonja Potzsch (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: 4-Antibody Ag. Retrieved from https://idiyas.com/company/4-antibody-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]

3 patents (EPO):

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]