Not disputing your number, but wherever you got it, it’s likely “40% of challenged patents” that are invalid. Only a relatively small subset of patents are chal

Not disputing your number, but wherever you got it, it’s likely “40% of challenged patents” that are invalid. Only a relatively small subset of patents are challenged. As an aside; patent attorney productivity is an elusive concept. Or any attorney, at that. And that is because every single attorney only cares about one metric: billable hours. Not volume of work produced, not client wins, but billable hours. Efficiency to an attorney means lower effort to bill more hours. Quality is not a concern, only hours. I cannot stress enough how traditional concepts of efficiency or success or effectiveness don’t apply to lawyers. It’s a deeply flawed industry. And in patent work, it’s difficult for clients to determine if the lawyer is doing a good job or not. Concrete results are many years down the road, and often the in-house attorneys supervising aren’t qualified or given enough time to evaluate ongoing prosecution efforts across a large portfolio.