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I'm wondering what the best way to match prior art to a claim you feel is invalid. I have found examples applicants use with the USPTO, so I would imagine using that same format to invalidate a claim may be helpful. Do you have any suggestions on what would be useful in the right column, while keeping it short and simple?

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Are you looking for a way to analyze it for yourself or to present to others? If it is to others who are they - what is the audience ? –  George White Dec 23 '13 at 0:17
I'm looking for any advice on how to best narrow or invalidate a claim. Like a worksheet that one can use before posting prior art to ensure that it has all the requirements. The audience could be this website, the USPTO, an attorney, and so forth. –  Robert Tesla III Dec 23 '13 at 15:04
A claim chart is a very good short hand. For lack of novelty every element of the claim must be taught in a single embodiment in a single document and not just the presence of the elements but their interrelationship. For an obviousness rejection the elements can come from multiple documents but there also needs to be some logic as to why someone would put them together that way. An actual rejection is in an more narrative form. –  George White Dec 23 '13 at 17:45

3 Answers 3

the best way is to use pictures and product proofs (screen clips from product manuals etc).

Map it tick for tack, everything that is a element must be shown.

Using too much text (as is the modern standard) confuses and dilutes the points.

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A patent claim document must include a data input device comprising: an input surface adapted to be locally exposed to a pressure or pressure force, a sensor means disposed below the input surface for detecting the position of the pressure or pressure force on the input surface and for outputting an output signal representing said position and, an evaluating means for evaluating the output signal of the sensor means.

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The short answer is preparing the claim charts. Map the claims of the subject patent with the prior art in a feature by feature manner. You can use color mapping or different text mapping which suits your purpose.

If the prior art is a patent, then also include the indexing i.e from where you got the matter from the patent.

If the prior art is a non-patent, then do include the pictures of the products.

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