Patent No. EP3706307 (titled "Series Hybrid Architectures Using Compounded Doubly Fed Machines") was filed by Hamilton Sundstrand on Nov 28, 2019. The application was issued on Jun 29, 2022.

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.
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.
Date
Description
Get instant alerts for new documents