The Disappearing Rule of Addition (English)
Article by Gerry Peters on the increasing reluctance of the CAFC to interpret nominally open-ended claims (i.e., as signaled by presence of the transition "comprising") as in fact being open to the presence of additional elements.

Practice Tips in Light of Festo and Similar CAFC Cases (mixed Japanese and English)
Slides from talk given by Gerry Peters in 2002 on the subject of patent prosecution tips in light of the Festo case and similar U.S. patent cases that tend to place an increasing burden on the patent practitioner.

The "Specific Exclusion" Doctrine in U.S. Patent Claims Interpretation, with Patent Claim-Drafting Workshop (mixed Japanese and English)
Slides from talk given by Gerry Peters in 2015 on the subject of what is called the "specific exclusion" doctrine as it is applied to interpretation of patent claims, with particular emphasis on how same doctrine has been used in reverse-DOE-like manner to exclude plurality where claim term happens to be written in singular form as is traditional claim-drafting practice, with claim-drafting workshop including guidance for modern-day claim drafters who wish to safely circumnavigate such antipatent trends.