A construction analysis is simply an exercise in interpreting the language of the patent in order to give it sense or meaning. More typically, it is an exercise in interpreting the language of the claims of the patent.
AstraZeneca Canada Inc v Apotex Inc, 2015 FC 322 - Claim 1 was worded general enough to capture Apotex’s subcoating layer even though Apotex’s subcoating layer was generated by an in situ chemical reaction, a process that the patentee had not contemplated.
Microsoft Corporation v Proxyconn, Inc, - The “broadest reasonable interpretation standard” (“BRI”) standard is the standard for claim construction in Inter Partes Review IPR proceedings and newly substituted claims must be demonstrated to be patentable over the prior art of record.
Eli Lilly Inc v Mylan Pharmaceuticals ULC, 2015 FC 178 - Mylan did not infringe the ‘948 Patent because the Mylan’s tadalafil compound did not have the claimed particle size distribution and the formulation did not contain the claimed concentration of hydrophilic binder. The Court rejected two purposive arguments by Eli Lilly in favour of a more literal reading of the patent.
Eli Lilly Canada v Canada (Attorney General), 2014 FC 152 - This decision clearly states that a higher level of specificity is required to adhere to the Regulations than is required for an element to be claimed as a matter of claim construction.
Teva Pharmaceuticals USA, Inc, et al v Sandoz, Inc, et al, 574 US __ (2015) - United States Supreme Court clarified that claim construction can involve subsidiary factual disputes that are reviewed on a clear error standard, while the ultimate question of claim construction is reviewed de novo.
Allergan Inc v Apotex Inc, 2014 FC 567 - In terms of claim construction, this case shows the tension between construing claims based solely on the wording of the claims versus peering beyond the wording of the claims to distill an underlying invention.