We processed a year's worth of issued patents to compile information about which law firms are doing work for which companies.
We have a page for each law firm with at least 50 in the year and for each company with at least 10 patents in the year.
We rank law firms and companies according to several criteria: number of issued patents, speed from first office action to issuance, quality according to proofreading errors, and more.
We proofread a year's worth of patents and computed a quality score for each law firm and company based on the number of errors in issued patents. Here, we provide more details of the patent quality rankings.
Law Firm Rankings Company Rankings
You can learn more about how we compute our quality scores.