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6 votes
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How can I perform a global patent search for free?

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 ...
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5 votes
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Is searching by CPC adequate while performing a patent search?

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 ...
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4 votes

How can I perform a global patent search for free?

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 ...
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4 votes

What are the best prior art databases and search tools?

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 ...
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  • 9,607
4 votes
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What is a Formal Patent Search of Classification in Canadian patent law?

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 ...
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  • 1,299
3 votes
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Find patents with classification that have been reexamined

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 ...
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  • 7,033
3 votes

Do I need to search for patents which are not yet published?

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-...
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  • 776
3 votes
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Is there any way to search classification of USPTO?

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. http://www.uspto.gov/web/patents/...
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3 votes

How can I perform a global patent search for free?

You can use Google Patent Search to conduct free patent searches. It contains more than 87 million patents from 17 patent offices. Added to that, its sleek UI and some functionalities that help you ...
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3 votes

Is there a way to filter enormous Patent results?

You can either use keywords for filtering, or something better, use the patent classifications systems put in place by different patent offices. Based on the technical details of the invention, the ...
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2 votes

Instance of the product patented?

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 ...
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  • 698
2 votes

Is patent search reserved to agents or attorneys? Is searcher accountable?

Anyone can provide the services of a novelty/patentablity search or patent landscape report. However, a freedom to operate analysis is a different story. Even as a registered patent agent I am leery ...
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  • 25.3k
2 votes
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How to find all patents of inventor and get automatic update

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 ...
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  • 2,115
2 votes

How to know what is an important patent?

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 ...
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  • 1,204
2 votes

any other patents involving baseball caps for pigtails?

Performing a thorough patent search is a significant effort. Some people make a career of it. I think you should try to do it yourself first and then ask for help if you get stuck. Even though I don't ...
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  • 9,607
2 votes

Who holds patents for "over-size" golf club grips?

Performing a patent search is something you can do for yourself for free. This answer describes my process. Searching with the terms "oversize golf grip" on The Lens resulted in 428 granted US patents ...
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  • 9,607
2 votes
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Miscitation between patents due to human error?

This is an obvious error. The US 7,439,877 patent citation is the correct one because it is in the same space and has the same inventor as the patent in question. The two identifiers are only off by a ...
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  • 1,775
2 votes

Images available?

It turns out that "www.google.com/patents" often has issues with displaying images and really shouldn't be used. If you really want to use Google then use the site "patents.google.com". Here is the ...
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  • 9,607
2 votes

USPTO patent search database no longer secure over web SSL https

You might try Espacenet, The Lens or PatentScope - all are https
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  • 25.3k
2 votes

Is there a way to filter enormous Patent results?

Google patents offers many ways to narrow a search. You might start with google patents advanced. It also has an "about" section. You can limit a search by country, status, just look in title, etc. ...
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  • 25.3k
2 votes

How do I tell whether a paper, published online, is patented

As mentioned in a comment, patent applications are not published until 18 months after initial filing. If it is a U.S. only filing it is possible that non-publication was requested and no publication ...
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  • 25.3k
2 votes

Search engine to find all prior patents of patent attorney

For the U.S. you can go to its patent search page and search for Legal Representative (LREP). I tried it with my first name last name, got 0 hits; first name middle initial last name, got 0 hits. Then ...
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  • 25.3k
2 votes
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Is there a professional cost efficient novelty search?

There is no particular office I would say. Some patent offices have examiners more knowledgeable in some topics than others, then some examiners are better than others. You could file the same ...
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2 votes

Is there a professional cost efficient novelty search?

In the past I got several good searches with KPO as ISA. From the U.S. the cost is still about 1/2 what it would be from the EPO. When I started using Korea they were new and charged even less. It is ...
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  • 25.3k
2 votes
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Are there differences between Google Patents, Espacenet, The Lens and PatentScope?

Yes - there are differences amoung these and others. The number of fields you can independently search with google patents is very limited and they are thought of as missing some recent documents. ...
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  • 25.3k
2 votes

Are there differences between Google Patents, Espacenet, The Lens and PatentScope?

As an aside to George Whites excellent answer, if you know the patent or application number, Google Patents is generally the fastest way to the document. That said, I greatly prefer The Lens. When ...
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  • 9,607
1 vote

Images available?

I don't know why they are not available at google, but if you follow for example the espacenet link (at the google page at the right where it says external links) or the USPTO link you will find the ...
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  • 5,827
1 vote

Tool for checking/proving the appearance of a product in the market

The Wayback Machine is actually the closest thing available for this too, even if it's not quite the main purpose. This should show, in most cases, at least when a product is offered for sale. Though ...
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  • 7,033
1 vote

What is considered applicable prior art?

1) I think that the company may be looking out for their own interests. I say this because you led their list of reasons to proceed with (1) the invention is only made in the UK, and (2) it's not ...
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  • 491
1 vote

Drawings and practical implementation

The WIPO Application can be downloaded from the European Patent Register. Select the "International publication of the A2 Pamphlet" entry and click on "Download Selected Documents". The application is ...
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  • 1,775

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