Microsoft, Apple, Google sued over icon software patent
arstechnica.com
arstechnica.com
This is submarine-ary of the first order. It may be legal at this time but I'm ready to lean out and say that its immoral.
The term submarine patent is typically used for a patent application where the applicant delayed issuance and kept amending the application until a worthwhile target appeared. Without looking at the application, I can't say whether that's true in this case.
However, US patent law changed some time ago to limit the value of this strategy. It used to be that the 20 year term started when the patent issued. Now patents expire 20 years after application, even if they're not issued until 10-15 years after application.
The "publish one year after application" rule for US patent applications is fairly recent. (I don't think that it was retroactive when it was introduced.)
So, even if Google wanted to search for patents back then, they couldn't have.
The best thing would be to simply lower the cost of invalidating a patent. For example, in the UK anyone can challenge a patent without having to go to court. Just forward your prior art evidence to the patent office and when it is verified the patent becomes invalid.
I know of cases where individuals have gotten patents invalidated for things didn't compete with their business or affect them in any way. They challenged the patent just on the grounds that it was false (i.e. the owner of the patent didn't invent the idea).
The mistake the US makes is this idea that everything has to be proved/disproved by the court system. That's way to expensive and way too much trouble for things like patents. There are so many laws, patents and so on that shouldn't exist, but do because no one has been willing to challenge it in court to get it thrown out.
As can anyone in the US. One of the procedures is a petition for reexamination.
The US patent system has problems, but if you're going to suggest changes, it's good form to know how it actually works.
The hard part is knowing in advance what frivolous bullshit patent the trolls are going to throw at you.
Why do you think that what you see of the US patent system is representative of how it works? If you're relying on news, you don't have a chance.
News is almost always a conflict account, typically written by someone who doesn't understand the system. When a patent holder sues someone, that's a court case. At that point, the sued may well file a reexamination request, but they're also likely to make an in-court invalidation request. (The RIM case has some interesting twists having to do with the combination of these factors.) You'll hear about the latter but the former isn't part of the case.
FWIW, there are some fairly prominent reexamination cases that folks who follow the US patent system would be aware of. One is Amazon's one-click patent.
Here, I'll do it for you:
http://en.wikipedia.org/wiki/Excludability
http://en.wikipedia.org/wiki/Rivalry_(economics)
Now in truth, while I used to be interested in this, I haven't looked much in the question in the last few years.