"35 USC 102(a) THE INVENTION WAS KNOWN OR USED BY OTHERS IN THIS COUNTRY,OR PATENTED OR DESCRIBED IN A PRINTED PUBLICATION IN THIS OR A FOREIGN COUNTRY, BEFORE THE INVENTION THEREOF BY THE APPLICANT FOR PATENT"
102(a) defines that US is a first to invent country and you are not going to get a patent if your invention was known (in written form usually) or used by others (practiced) by others in USA before date of invention, and if it was patented or was described in printed publication by others in any country than also you are not going to patent.
There are some keywords like 'Others' which means other than inventor himself. If inventor himself has published or practices he might still get a patent but it was done by others than he is not going to get a patent. Keyword 'in this country' means that that if the patent was being used in any country other than USA then he might still be able to get a patent. Keyword 'printed publication in this or foreign country' means that if the invention was patented or was described in printed publication (no language bar is there so publication can be of any language) he is out of luck. The keyword 'public' means that the publication should be available to public if the publication was maintained as confidential within a company its not public but if the publication was published in a magazine in some obscure magazine in place like China in chinese language its public. Keyword "before the invention" means the date which inventor can prove he actually invented the invention and it could be before earliest filing date (if inventor can prove it with some written records).
"35 USC 102(b) THE INVENTION WAS PATENTED OR DESCRIBED IN A PRINTED PUBLICATION IN THIS OR A FOREIGN COUNTRY OR IN PUBLIC USE OR ON SALE IN THIS COUNTRY, MORE THAN ONE YEAR PRIOR TO THE DATE OF THE APPLICATION FOR PATENT IN THE UNITED STATES"
102(a) defines that US is a first to invent country and you are not going to get a patent if your invention was known (in written form usually) or used by others (practiced) by others in USA before date of invention, and if it was patented or was described in printed publication by others in any country than also you are not going to patent.
There are some keywords like 'Others' which means other than inventor himself. If inventor himself has published or practices he might still get a patent but it was done by others than he is not going to get a patent. Keyword 'in this country' means that that if the patent was being used in any country other than USA then he might still be able to get a patent. Keyword 'printed publication in this or foreign country' means that if the invention was patented or was described in printed publication (no language bar is there so publication can be of any language) he is out of luck. The keyword 'public' means that the publication should be available to public if the publication was maintained as confidential within a company its not public but if the publication was published in a magazine in some obscure magazine in place like China in chinese language its public. Keyword "before the invention" means the date which inventor can prove he actually invented the invention and it could be before earliest filing date (if inventor can prove it with some written records).
"35 USC 102(b) THE INVENTION WAS PATENTED OR DESCRIBED IN A PRINTED PUBLICATION IN THIS OR A FOREIGN COUNTRY OR IN PUBLIC USE OR ON SALE IN THIS COUNTRY, MORE THAN ONE YEAR PRIOR TO THE DATE OF THE APPLICATION FOR PATENT IN THE UNITED STATES"