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Idea to reduce the manufacturing time of FDM parts



Hello Ed,

I have found your website very informative related to the RP industry. We have a service bureau and recently I have conceived an idea to reduce the manufacturing time especially for FDM parts.

My question is; could you please provide some guidelines about how to approach patent issues.

I've browsed through your RP Patent Museum and couldn't find anything related to this technique so could be a drastic improvement in the process. I would appreciate if you could please provide me some guidelines as I'm not familiar with US patent legal issues. Do you think it’s possible to approach potential licensees without going into patent formalities?

Thanks once again for your wonderful work on your website and look forward to get your feedback.

Kind Regards,
RI



Hi RI:

Thanks for your letter.

Your search of prior art hasn't been thorough enough at all. The RP Patent Museum you searched is just that - a representative sample of the most significant patents in the field. There are only about 70 there, and now the complete database has nearly 3,500 documents [as of 12/05]. That number will increase in a couple of weeks by 150 -> 200 when we start researching for this quarter's Additive Fabrication Spy.

Before you spend any money or time on lawyers or fees, I'd strongly recommend you search the US PTO site (www.uspto.gov). Naturally, we'd like to sell you our patent database for US$299, or provide you consulting help - but try that first. You might find something that interferes fairly quickly and that will save you some bucks. By fairly quickly I mean several hours of work, incidentally. You should also search the bibliography section of our site thoroughly.

Assuming you don't find anything that knocks you out at the PTO, consider purchasing our database as a next step or having us research it for you. I've attached a consulting brochure for your reference.

More about the database can be found here: http://home.att.net/~castleisland/pr_pat.htm


If you're still alive after that, your next step is to make a provisional patent application (about US$100 fee). You should do this before any approach to a licensee because most companies won't talk to you at all without an application. Most companies feel they would be jeopardizing and confusing their legal positions without one. An application lays out the legal specifics and clarifies the situation.

This is the least expensive way to proceed, but you'll need to file a utility patent application within a year. Note also that your invention must comply with patent filing rules such as not being sold or disclosed anywhere in the world for more than 1 year prior to your (provisional) application. By the way, US patent attorneys are very expensive; 5 years ago mine was charging US$475 / hr. I tremble to think what he's charging now. There may be some creative ways of dealing with that, however. You can find out more about US patenting procedures on the PTO web-site.

Approaching a company with an invention is always fraught with difficulty. Even if you have a patent application in-hand, and they're willing to speak with you and sign non-disclosure agreements, your description might be enough to get them thinking about ways around you. They may have already been working on something in-house or financed research at a university similar in nature, etc. They may license your idea and never use it - The list goes on. You should think about a strategy for getting value out of the property beforehand. If you make any money at all, you'll be doing well compared to the majority of inventors in similar situations.

I hope this will get you moving in the right direction. Thanks again for your letter. Please keep me informed of your progress and I send best regards.

Ed

Ed Grenda
Castle Island Co.
The Worldwide Guide to Rapid Prototyping


 


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