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USPTO Data Jan 1 1976 - Oct 20 2026
1 Patents
#1 in SN Nijehaske
#3,352 in Netherlands
Efka Additives B.v.
Forward Citations = 2
4 inventors:
Efka Additives B.v.
Trademarks = 1
Forward Citations = 2
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4 inventors (with patents filed for the assignee):
Frank Oliver Heinrich Pirrung (1 out of 15 patents)
Lothar Alexander Engelbrecht (1 out of 9 patents)
Arend Noordam (1 out of 5 patents)
4. Elizabeth Maaike Loen (1 out of 2 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Efka Additives B.v.. Retrieved from https://idiyas.com/company/efka-additives-b-v
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]
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]
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]