US mobile phone technology vendor Qualcomm is known for efforts to get the most out of its patents.
It's also very proud to show them all off, displayed on a wall. I saw this wall, on a recent visit to its offices in San Diego.
It's very impressive, but there's something bothering me. I'm sure I saw a similar wall, showing all IBM's patents, at an IBM briefing centre in Austin, some fifteen years ago (I was on a visit to learn about the p series - or the RS6000 as it then was).
I don't have a photo of IBM's wall, and haven't been able to find one online. From memory, even that long ago, it was bigger than Qualcomm's.
But what I'm wondering is - doesn't this mean IBM has prior art on the whole Patent Wall thing....?