There are a few patents that I've found informative and useful to read: Texas Instruments' calculator patents from the 1970s, the ENIAC patent, Astrolite, and Autotune. These are the rare patents where they actually explain things in detail, it reads like it was mostly written by an engineer rather than lawyers, and I know more after reading the patent than before. (Just want to give some recognition to the rare non-awful patent.)
Edit: I looked at a few of the Holmes patents. I'd put them in the awful category. Hundreds of pages of worthless discussion, followed by claims that are semi-incomprehensible, seem obvious, and have little to do with the earlier hundreds of pages. They have lots of nice graphs and diagrams though.
Eric Drexler's solar-sail patent was the only actually-educational patent I've ever seen, myself. https://patents.google.com/patent/US4614319 (Hm, I remember it as more detailed -- maybe I was remembering a tech report instead. But still this looks like reasonable English.)
There are a few patents that I've found informative and useful to read: Texas Instruments' calculator patents from the 1970s, the ENIAC patent, Astrolite, and Autotune. These are the rare patents where they actually explain things in detail, it reads like it was mostly written by an engineer rather than lawyers, and I know more after reading the patent than before. (Just want to give some recognition to the rare non-awful patent.)
Edit: I looked at a few of the Holmes patents. I'd put them in the awful category. Hundreds of pages of worthless discussion, followed by claims that are semi-incomprehensible, seem obvious, and have little to do with the earlier hundreds of pages. They have lots of nice graphs and diagrams though.