Way to Find All Patents Issued to Porsche?

Ed Ruf Lifetime AMA# 344007 ( snipped-for-privacy@EdwardG.Ruf.com)

I assume from your rather curt reply that you would suggest that I go to the USPTO web site. That is a reasonable but WRONG guess.

Perhaps you are a youngin' and don't know that Porsche was born in 1875 and died in 1951. Or, perhaps, you didn't know that

Patents from 1790 through 1975 are searchable only by Patent Number and Current US Classification!

according to the United States Patent and Trademark Office.

Anyway, that doesn't work.

Ed Ruf wrote:

Yes. Somewhere in each state in the US is at least one Federal Depository Library with a patent collection.

Start at

look at the Linked List to Libraries by State and find your friendly local library. Call them or e-mail to check how far back their collection goes. Then visit and browse.

Pittsburgh Pete

Since you didn't mention this in your original post......

Perhaps, you're an old fart that can't spell out his request in terms that eliminates trivial responses that he all ready has tried but didn't take the 10 secs to spell out in his original post.

In any case, good luck.

---------- Ed Ruf Lifetime AMA# 344007 ( snipped-for-privacy@EdwardG.Ruf.com)

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