A was known, see reference 1. B was known, see reference 2. It would have been obvious at the time the invention was made to use B with A because B preserves A.
That sounds like KSR as applied at the PTO. The examiner is free to pull the reason to combine from just about anywhere except the applicant's claims. (Okay a bit of an overstatement) According to the Supreme Court, improper hindsight is avoided by simply being aware of the evil it causes.
Yeah, I think that's an overstatement. I know that's how the PTO is reading KSR, but it's not what KSR said. KSR re-affirmed Graham. One of the absolutely required detailed factual showings required to make a prima facie case of obviousness is the level of ordinary skill in the relevant art(s) at the time the invention was made. Show me one single obviousness rejection in the last 20 years that included such a showing. I've never seen one.
The TSM test was a short-cut. If you can show a publication with a teaching, suggestion or motivation (TSM) to combine, then you've established that the TSM was available to one of ordinary skill in the relevant technology at that time. Determining the level of ordinary skill was obviated so long as the ordinary artisan was considered literate. And, I think that most applicants just effectively stipulate that an ordinary artisan is at least able to read.
Now, the PTO would like to drop the TSM test because it's a burden to show obviousness. It's just a burden to examine patent applications -- the PTO seems to wish it could just not examine anything at all.
Well, guess what? The TSM test is actually easier to apply than Graham itself! But, the PTO wants Graham? I give them Graham. In every single obviousness rejection I see, I challenge the complete absence of any factual findings whatsoever on the level of ordinary skill in the art at the time the invention was made.
Hence, no Examiner's Answers.
You won't get an answer until you get an Examiner's Answer on Appeal. Interestingly, I'm not seeing Examiner's Answers any more. In response to my Appeal Briefs, I get either (i) a new non-final Office Action with nearly identical grounds for rejection or (ii) Notice of Allowability. Don't know what to read into that.
I think those results are evidence that you are either a skillful prosecutor or are particularly good at getting clients who have actually invented. My reading of post KSR Board decisions is that the BPAI is affirming rejections pretty much like the ones you describe.
Well, most of the time, I'm blessed with the latter. I'd like to think the former has something to do with it as well.
Mostly, I think it has to do with my strategy of making the PTO long for the return of TSM by holding their feet to the fire of KSM/Graham. So far, it seems to be going well. Although, by really pushing the issue, I may be setting myself up for a battle at the Fed. Cir. or SCt. as the PTO hopes to continue pulling motivations to combine out of their ... well, you know.
At the very least, my clients like my very aggressive strategy and style.
Regards.