Patent trolls, trademark trolls, and copyright trolls. They should all rot.
I work for a catalog retailer, and the number of big corporations (we're talking DuPont) as well as other "non-companies" who have threatened us for using their trademarks is nothing short of infuriating. So why don't they go after the manufacturers whose terms we are simply quoting? Because they know that bigger companies have better lawyers!
In one case, a so-called company claimed to own the term "dry break" and said that if we wanted to keep using their name, we had to carry their products. We immediately replied that we'd be very interested in carrying their products... and we never heard from them again. GEE, I WONDER WHY.
In case anyone else is in the age range to remember the 1997 song "Bitter Sweet Symphony" by The Verve, they were sued over it TWICE -- once by the conductor of the orchestra heard in the backing track (despite getting permission from the record label in exchange for royalties), and once by the manager of the Rolling Stones, because the backing track is from an orchestral arrangement of the song "The Last Time". As a result, The Verve got zero royalties on their hit song for 20 years. Every penny went to Jagger, Richards, the orchestra conductor, and the orchestra's record label. The Stones finally (voluntarily) signed over their rights to the song in 2019, 22 years after the song became a hit. Apparently the lawsuit was not their idea in the first place.