Peter Henrik Pedersen has kicked off a litigation campaign over a single patent on which he is the sole named inventor. The patent generally concerns managing “electronic messages” based on a recipient profile that is used to determine “where, when and how specific types of messages from specific messengers are delivered to the recipient”. Pedersen has filed four cases, one against each of Alphabet (Google) (6:21-cv-01152) and Microsoft (6:21-cv-01154), over their webmail products, as well as against J2 Global (6:21-cv-01155) and Mailgun Technologies (6:21-cv-01153), over their mass marketing email products.