WIPO has a patent search interface that covers PCT applications and many national databases, including Europe, Japan, Korea, Russia, many Latin American countries, and more. I think all currently-applicable patents in these countries are covered, and there is additional historical data for some countries, but some of them only index metadata and abstracts, ...
Most countries provide a search engine for their patent data. Additionally there are third-party search engines for patent data. Most of these will (all the big ones do) search the text of the patents for the supplied terms. Below are some links for the most popular tools. If you are looking for US patents, I would start with Google Patents first to get a ...
According to the USPTO FAQ:
Most patent applications filed on or after November 29, 2000, will be
published 18 months after the filing date of the application, or any
earlier filing date relied upon under Title 35, United States Code.
Otherwise, all patent applications are maintained in the strictest
confidence until the patent is issued or the ...
There are lots of approaches here. The only one that satisfies your 100% criteria is to give up and go home. I.e., none of the approaches are satisfactory. However, your risk here is probably relatively much less than other entrepreneurial risks associated with this venture.
(1) you can conduct a freedom-to-operate search that will perhaps get a ...
Making the accusation of willfulness is trivial; proving it at a trial is more difficult. Simple failure to search is not sufficient basis for a finding of willfulness. Some showing of actual knowledge of infringement or likely infringement is required. Notification (whether by the patent holder or any other party) is evidence of knowledge.
As with so ...
No. As mentioned in a comment, patents and patent publications are not the only sources of prior art. Professional technical journals, magazine articles, books and even youtube videos could contain relevant prior art. Also, CPC is a joint program of the U.S. and the EPO. Patent documents from other locations may not even have a CPC classification. To get a ...
The Lens, started as Patent Lens 15 years ago, is open, free, no advertising (secure) and a public service. It searches in over 90+ jurisdictions and hosts 100M patent records. It is not just federated search, but comprehensive links, analysis, embedding and sharing of records, collections and annotations.
It is run by a global social enterprise, Cambia ...
Good question. I am unaware of any limit on the number of documents on which priority may be claimed.
Sometimes a patent application claims priority to an application that itself claims priority to another patent application.
For example, an inventor could file a provisional application. A non-provisional application could claim priority to the ...
I am not a lawyer but my suggestion is do not bother.
It is the patent holders responsibility to defend their patents. By searching you are doing their job for them.
I would say that it is impossible to be 100% sure you do not infringe. Patents are written to cover a broad range of uses; because of that I would guess that very little software is written ...
According to the EPO website, this patent application has been published and is pending examination.
Since it looks like priorty is claimed to a US filing, a search on the US Patent Office website seems to confirm that a US patent has not issued for this application.
Searching in Public Pair http://portal.uspto.gov/external/portal/pair for the APPLICATION number 61/472609 gives details of this application. By clicking the continuity data tab you get 13/396,368 filed on 02-14-2012 which is Patented claims the benefit of 61/472,609
13/396,392 filed on 02-14-2012 which is Pending claims the benefit of 61/472,609
Prosecution and re-exam proceedings (often referred to as "file wrappers") are selectively available on Public Pair. There you can search by patent number (e.g., 1,234,567) or publication number (e.g., 20130143080). If the file is available online you'll be able to view the transaction history (e.g, the titles of documents sent back and forth). If the file ...
The best way to look for the actual information on the status of a US patent or patent application is to access the US Patent and Trademark Office's public information portal (PAIR). After searching for the patent document, which can be done in a number of ways, e.g. bu application number, publication number, and the like, information about the status can be ...
There is an alphabetical index of USPC classes that you can use. For example, if you look up the word "mouse", you'll see that they are included in class 345.
Patent applications which are not published will not be available for search.
Refer to this link to understand on how to conduct a prior art search: http://www.invntree.com/blogs/how-conduct-patent-search
USPTO's PatFT provides functionality for this. In particular, the re-examination certificate (REEX, where REEX=YES refers to a certificate of re-examination being present) and current CPC classification class (CPCL) are probably be relevant.
The query REEX/YES and CPCL/F25B seems to provide what you want.
In my corporate life I used paid services such as Micropatent and TotalPatent. Of the free patent search tools, I prefer The Lens over Google patents. The Lens provides more fine grained control and if you register (completely free) provides useful additional features such as saved searches, search history and collections. In addition, I find The Lens ...
What is this Formal Patent Search of Classification? I haven't been
able to find any information on it online. Does it differ from a
preliminary patent search (as explained on the CIPO website) in any
A patent classification is a system to categorize (code) documents, such as published patent applications, according to the technical ...
The biggest free patent information database is Espacenet like mentioned already. Bu there are many free databases. Depends what kind of information do you need.
On of the best resources about patent information databases and search tools is Intellogist and their patent coverage map http://intellogist.com/wiki/Patent_Coverage_Map
Select the country and you ...
There is no free global patent search system. There has been tremendous amounts of normalization of intellectual property law around the world through the World Intellectual Property Organization, but as of today there is no free service, governmental or otherwise, that can search the multitude of patent databases around the world.
DEPATISnet is the best option. It is a completely free database and belongs to German Patent Office. I have worked on the database for over three years and found that the result quality is as competitive as an expensive paid database like Thomson Innovation.
Databases like Espacenet , Google Patents , etc. do not have proximity operators like "Word A and ...
There are many pay-per-click advertising networks. Google AdWords isn't the only one. They may quite possibly hold patents on some details of their particular implementation, but if you step on their toes you'll probably find out quickly enough. ;)
The existence of a patent does not necessitate the existence of a product.
It is very common for patents to be written prior to any product development. The inventor may simply want to protect an idea prior to seeking investment for product development, or the product development may simply stall and never make it to market.
In software patents especially, ...
This features is available using skeinforge.
"Empty Layers Only
When selected, support material will be only on the empty layers. This is useful when making identical objects in a stack."
Not sure if this is what you are looking for, but the USPTO provides a classification structure that you can navigate through here ==> http://www.uspto.gov/web/patents/classification/selectnumwithtitle.htm
There are vast method to cover all patents filed by inventor, It depends on indexing of database, truncation or errors made while filing or indexing, language etc.
A person has to design various keywords to cover all possibilities. Still researcher may not get complete information if patent office is not included in searchable database.
To search inventor ...
in prior art search; you narrow down your search by using 'key words'. First one or two takes you to your field. Following Key words should represent your adopted means and methodology for solution to the problem you have chosen to solve.