CIPO Patents = 1

EPO Patents = 3

Trademarks = 2

Forward Citations = 1

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5 inventors (with patents filed for the assignee):

Masahiro Yamaji (1 out of 10 patents)

Tomohiro Ishima (1 out of 2 patents)

Hiroyuki Yamasaki (1 out of 1 patent)

4. Henning F Cierpka (1 out of 1 patent)

5. Jurg Lutz (1 out of 1 patent)

6. Jürg Lutz (1 patent)

7. Juerg Lutz (0 patent)

8. Hiroyuki Yamasaki (0 patent)

9. Hiroyuki Yamasaki (0 patent)

10. Roger Imboden (0 patent)

11. Erich ROTHENBÜHLER (0 patent)

2 patents: Sort by Forward Citations

#109 in Basel

#3,075 in Switzerland

Drossapharm Ag

Forward Citations = 1

5 inventors:

Masahiro Yamaji (1 out of 10 patents)

Tomohiro Ishima (1 out of 2 patents)

Hiroyuki Yamasaki (1 out of 1 patent)

4. Henning F Cierpka (1 out of 1 patent)

5. Jurg Lutz (1 out of 1 patent)

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

1 patent (CIPO):

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]