Is foreign patent inquiry authorized? How to inquire? thank you

1, what you said are all foreign patents, so before you inquire, you should determine which country the patent belongs to, and then go to the patent office website of this country to inquire (specific national patent website? You just need to input: Baidu's national patent websites? Come out); If it is an appearance patent, and it has been announced in that country, it means that it has been authorized; Other patent types will know whether to authorize or not according to whether there is an authorization instruction.

2. If the patent you want to know is a foreign patent of PCT, it will be easier to find. You just need to check on WIPO's website? http://www.wipo.int/& nbsp； ? This is an English version. You need to click to enter the "Patent" window and then enter "Search? Service "window, and then enter the relevant information of the patent for query, such as entering a patent number, and then the patent information will come out.

3. As for how to judge whether it is authorized, it depends on whether it has an international search report (later? Publishing? Yes? International? Search? Report? )

I found a patent for you here? WO/2008/064360？ Details are as follows:

Applicant: Zhang? Yin Zhi? [China/USA]; ? (USA)? (we? Only)? . ? Zhang? [China/USA] (USA) (USA only). ?

Zhou,? Qunhui? [China/USA]; ? (USA)? (we? Only)? . ? Zhou qunhui? [China/USA] (USA) (USA only). ?

Nelson? Little ... Sidney. [we/we]; ? (USA)? (we? Only)? . ? Little Nelson, Sydney? [USA/USA] (USA) (USA only). ?

Adsorbent? Technology? Company? [we/we]; ? 1664? East? Highland? Road? Twinsburg? Ohio? 44087? (USA)? (all? Except? We)? . ? Desulfurization technology company? [beauty/beauty]? East Heights, Twinsburg, Ohio 1664, 44087, USA.

Inventor: Zhang, ; ? (USA). ? What about Zhang? ; (USA). ?

Zhou,? Qunhui? ; ? (USA). ? Zhou qunhui? ; (USA). ?

Nelson? Little ... Sidney. ; ? (USA). ? Little Nelson, Sydney? , (USA).

International filing date: 23. 1 1.2007? 23. 1 1.2007

Publication date: May 29th, 2008? May 29th, 2008