Preservative-Free Sunscreen

Patent No. EP2438903 (titled "Preservative-Free Sunscreen") was filed by Beiersdorf on Sep 23, 2011. The application was issued on Mar 14, 2018.

Patent Summary

Patent Family

Patent Family

Patent Oppositions (4)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
L'OREALDec 14, 2018CABINET NONY
L'OREALDec 14, 2018IPSILON
STADA ARZNEIMITTELDec 11, 2018HAMM & WITTKOPP
DALLI WERKEDec 6, 2018F & E PATENT

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

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EP2438903

BEIERSDORF
Application Number
EP11182471A
Filing Date
Sep 23, 2011
Status
Revoked
Nov 20, 2023
Publication Date
Mar 14, 2018