Extended data:
One or three detailed methods:
1. Quick search: users can enter a single combination of two keywORds (such as AND, or, ANDNOT) to search, and specify the fields where the keywords appear (such as title, abstract of invention, inventor's name, etc.). ) and the year of patent publication. For example, if you search for a patent whose "patentee" is Microsoft and whose "invention name" is a search engine, the search conditions are set as follows: The search results are as follows: Click on the patent to be read, such as U.S. Patent No.6,523,021,and the text content of the patent will be displayed.
As shown below: It should be noted that this part only shows the text of patent documents, not including icons. If users are interested in icons, they can click "Image" to view the patented TIFF image file, as shown below. If you want to read the next page of the patent, you can press the arrow under "Turn Page" in the upper left corner of the patent to enter the next page;
2. Advanced search: users can enter multiple keywords and search by specifying the fields where the keywords appear through codes. For example, search for a patent whose name is camera, the patentee is Sony, and the patentee's city is Tokyo. From 1976 to now, you need to enter the search conditions "TTL/camera and an/Sony and AC/Tokyo" and select the year "6550".
For example, search for a patent whose name is camera, the patentee is Sony, and the patentee's city is Tokyo. From 1976 to now, you need to enter the search conditions "TTL/camera and an/Sony and AC/Tokyo" and select the year "6550". Keyword retrieval can be said to be the most commonly used retrieval method for general users, but it is easy to miss some patents.
3. Search by using the U.S. patent classification number. American patent classification number gives different classification numbers to different technical categories, and systematically classifies patents according to technical categories. Using the classification number to search, more complete patent information can be obtained.
Second, the various ways to apply for a US patent:
1. Apply for a patent directly to the United States (confidentiality review is required in China Patent Office in advance, and you can apply for a patent directly to the United States after the confidentiality review is passed);
2. Apply for a patent in the United States through the Paris Convention (the priority is only 12 months);
3. Apply for a patent in the United States through the PCT Patent Cooperation Treaty (priority can reach 30 months).
Third,? Materials needed to apply for a US patent:
1, specification, patent application part and attached drawings;
2. affidavit and power of attorney;
3. Priority: If the same invention (or design) has been applied in other Paris Convention countries, and the original application date is claimed in the United States, an application shall be filed with the United States Patent Office within one year (including Taiwan Province Province) from the application date of the first foreign application (the design is half a year).
4. Novelty requirements (the principle of first invention and the principle of one-year preferential period): an invention loses its novelty when it is patented in the United States or other countries or publicly used or sold in the United States for more than one year; On the other hand, if it is less than one year, it still has the novelty of applying for a patent.
References:
Baidu Encyclopedia Patent International Application