Patent No. EP3071704 (titled "System And Method For Sperm Sorting") was filed by Brigham And Womens Hospital on Nov 19, 2014. The application was issued on Jun 19, 2024.
A sperm sorting system comprises a housing with coupled upper and lower components supporting a microfluidic system. An inlet in the lower component delivers sperm through at least one channel along a flow path toward a collection chamber. This collection chamber consists of a first chamber in the lower component, closed at the bottom by a microfluidic chip, and a second chamber in the upper component. A microporous filter, sandwiched between the housing components, requires motile sperm to move against gravity to reach the second chamber, restricting non-motile sperm. A concentration chamber in the upper component, connected to the second chamber via a fluid connection, concentrates and facilitates the harvesting of the sorted motile sperm.

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