This would be the perfect place to mention that patent librarian Leena Lalwani also created collections of Patent Office annual indexes at Hathi Trust. Her Patent Annual Indexes collection is on Hathi's Featured Collections page as one of the most used collections! She also created a collection of Trademark Annual Indexes.
I created a collection of Canadian Patent Gazettes, French Patents, Cassis instruction manuals and Great Britain Patent Office Publications because Leena hadn't and Historic Intellectual Property should not be limited to the US! I also created a collection of US Patent Commissioner Decisions. It pains me to admit I use Leena's collections way more than I use the ones I created.