Dear Mr. Stasik,
The idea in claim drafting in view of Festo is generally this: get the same result you would have by conventional prosecution but avoid any amendments to any claims.
There are numerous suggestions as to how to do this. I'll try to remember a few for illustration.
One was what I wrote about before. Write all claims as independent claims and include as many combinations of elements as possible. That way, chances are that some of the claims will likely be allowable without amendment. The problem, as I see it, is that canceling an independent claim with A, B, and C and getting another claim with A, B, C, and D is the same as amending the first claim to include D. I believe there's at least one court opinion saying as much. So I don't think it works.
Another suggestion was to go through the PCT, conduct all prosecution through Chapter II (IPE), and then get your cleaned up claims into the US at the national phase. On one hand, you get really fast back and forth at about 24 months from your filing date -- and potentially a rapid path (by USPTO standards) to an allowable case. On the other hand, I'm not sure you won't wait for 3 more years in the PTO when you enter the national phase. And, if the US is the IPEA (the International Preliminary Examination Authority), I'm not sure that amendments there won't count in Festo.
I think someone suggested filing continuation applications rather than amendments. I think this one is ridiculous. Each continuation goes to the end of the queue and you could easily spend your entire 20 year term in "pending" status. That's one of the reasons for the 20 year terms.
Other things you should expect to see (as an examiner) in the Festo aftermath include refusal for seemingly minor clarifications in the claims. For example, I've had examiners object to "two or more" language because of alternative phrasing. Of course, this is ridiculous (does anyone really have a difficult time determining whether there are two or more of anything in a particular group?), but it's easy to get around -- simply amend "two or more" to recite "at least two". However, in view of Festo, examiners should expect more resistance to these types of amendments. As much as I think the objection is ridiculous, I think the resistance is also ridiculous -- Festo only applies to claims which narrow the scope of the claim. I don't believe that particular amendment narrows the claims at all. The practitioner should be able to identify amendments which narrow and those which don't.
Bottom line: expect weird claim constructs and tougher resistance to reasonable (or inconsequential) amendments desired by the examiner.
The problem with Festo is this: the coverage of a claim depends on whether it was changed in the PTO. I suppose it always has. The doctrine of equivalents (DoE) generally never allowed you to undo amendments made during pendency of the claim. However, when the accused device was between the prior art and the literal bounds of the claim, you might have had a chance. Under Festo, you're clearly better off (and you claim is clearly potentially broader) if you claim had not been amended. For example, if two claims are identical and had identical arguments made in the PTO in their histories, but one of the claims started out differently and was amended to be identical, the two identical claims have different breadth of coverage.
To me, that's absurd. And patent practitioners here are doing what they can for their clients to avoid that unnecessary narrowing of coverage.
The lesson of Festo: the Federal Circuit *hates* the doctrine of equivalents. The Supreme Court insists on it. Expect the Federal Circuit to narrow the DoE in every way it can get away with. Practitioners should write their cases as if the DoE doesn't exist. And, don't give away anything you don't have to. This is where an ounce of prevention (prosecution) is worth a pound of cure (litigation). Of course, that statement also reflects the relative budgets.
Anyone else here know of interesting, clever, or weird Festo strategies? I'm sure there are more that I'm forgeting.
Regards.