There are certainly others. Micron has a patent wall. For a period of time under CEO Steve Appleton, meetings with engineers were prohibited [Fridays or half of

There are certainly others. Micron has a patent wall. For a period of time under CEO Steve Appleton, meetings with engineers were prohibited [Fridays or half of Friday?] because the engineers should be working on parents during that time. My understanding is their strong patent portfolio was a good part of why they are still around after the massive consolidation of DRAM manufacturers through the 80's and 90's.