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Clarifications during amendments

Can one during amendments add clarifications, in particular to explain an algorithm executed by a micro processor. Can one add drawings to explain how the algorithm works. What section of the US ...
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69 views

Color and shading in patent application?

It seems USPTO allows shading but, for example, the Chinese's counterpart doesn't. So what is the best way to do drawing internationally? I.e. if the application with shaded drawing is filed in the ...
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Where are the drawings for wo2004066851a2

I have an invention that I want to patent, but it sounds similar to wo2004066851a2. I'm hoping that the drawings of wo2004066851a2 will be helpful to me in figuring out whether this is what I am ...
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25 views

Drawing quality after the PTO gets done with them

I have a Design patent and a Provisional patent in play at the moment. I looked at the progress in PAIR for both and things seem to be hunky dory. I decided to have a look at the drawings portion in ...
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750 views

What is the best free reliable patent drawing software?

Does anyone have any patent drawing experience? I'm looking to do it on my own and I figure there's some decent software out there somewhere. Thanks.