any advice on the best places/web sites of record to list ideas which you want to be on record as prior art so others can't patent them (UK/US/Europe) ?

I have some ideas, which I don't want to patent, but want to avoid others being able to do the same. I don't want to go to the effort of patent searches to see if they are original. Also, I would prefer not to publish all the ideas in the same location (I don't want patent protection, but I don't wan't to make it too easy for people to reproduce what I am doing -specifically I don't mind any of the ideas being used but I'd like a head start on the combination of the ideas)

Any advice on good places to post these ideas that satisfy the following criteria

  • relatively low effort/ expense
  • likely to stay online for next 20+ years
  • preferably reputable and validateable with timestamp
  • place UK/European/US patent offices may plausibly search
  • don't want to cause any trouble to an existing community
  • possibly anonymous

Ideas that come to mind including submitting to a patent office? (do they have a dumping ground for open ideas), maybe the EFF or similar, I could spam a reddit or hacker news comments or similar, there may be some crazy blockchain validator. I've had a quick look at @askpatents

I've had a quick look and can't find anything obvious, but I'm sure something like this exists and I'm too stupid to find it. I don't really use twitter/ facebook much. I can always use my blog if I have to Thanks

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    This is a good question because it relates to where patent examiners might look to establish prior art. – DukeZhou Nov 21 '17 at 0:44

The most famous one is http://ip.com/

I don't know if one has to pay for publishing there, but its main purpose is defensive publications, i.e. what you are looking for. Patent examiners include the ip.com database to their searches, I personally have seen many search reports citing ip.com articles. So it is guaranteed that your disclosure will be retrieved against any future patent filing.

It is also time stamped and may be anonymous.

Mind that for one to have access to the article, he has to pay. But this is irrelevant to the fact that major patent offices search within its database and cite relevant prior art.

  • Although this seems trivial, it would be convenient to add a link to ip.com. – Eric S Nov 21 '17 at 14:54
  • According to this page: portal.ip.com/login.html?after=https://publish.ip.com it is free to upload prior art, but it requires creating an account. I haven't done so, but it looks like it is only asking for a username and password so it may indeed be anonymous. – Eric S Nov 21 '17 at 14:57
  • It should be anonymous, I have seen much prior art there and it is always anonymous (although I sometimes can tell which company is behind it, LOL) – chempatent1981 Nov 21 '17 at 18:01
  • Thanks chempatent1981. I didn't know about ip.com so this is a really useful answer. – Eric S Nov 21 '17 at 21:03
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    USD $395.00 for ONE SINGLE PUBLICATION VOUCHER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! eh !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! for ip.com it's preposterous. – aliential Mar 11 '19 at 13:51

This topic has come up here several times before. There are many helpful answers you can see by searching "defensive publication" on Ask Patents. Also, it is not expensive, but to publish on ip.com you still need to buy "vouchers" from them, I believe.

Some others of the defensive publication sites specialize. For example, OIN (Open Invention Network) has a site www.defensivepublications.org That is related to OIN's mission to keep Linux open. Their site's FAQs emphasize that a publication must be enabling to act as prior art to a patent application.


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"Defensive Publication In France. Study on usage of defensive publication strategy "; Felix Coxwell, Eva Gimello; Nov 12, 2012


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