If there is one thing that tends to kill discovery motions, it's delay. If you want to have the best chance of winning your motion to compel, supplement, strike, etc., you need to bring the motion early. Don't wait.
We got a good example of that last week in CosmoKey Solutions GmbH & Co. KG v. Duo Security, Inc., C.A. No. 18-1477-JLH, D.I. 163 (D. Del. Apr. 9, 2024). There, a defendant sought to compel a deposition of an inventor before a Markman hearing, arguing that the testimony was important for claim construction. The Court denied the request, in part because they waited too long:
ORAL ORDER: The Court has reviewed the discovery …
