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Exceptions To Patent Infringement Discussed


Lawdit Solicitors - Expert Author

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6 February 2011

There are many shields available to deflect the sward of patent infringement. That is, private, prior and experimental use of a patent.

Private use - where the defendant is using the patent for non-commercial purposes, within SFK -v- Evans and section 60(5)(a) of the Patents Act 1977 ("PA").

Experimental use - by section 60(5)(b) one may use a patent for experimental use. If using a patent for experimental use one should be sure to have the motive of experimentation and not for example to gather information from a rival. See for example Monsanto Co -v- Stauffer Chemical Co and SFK -v- Evans.

Prior use - whilst a shield can also act as a sward directly against the validity of the patent at issue, which could result in the patent being rendered invalid. The primary effect of the prior use doctrine is to deflect an action for patent infringement where it can be shown that the defendant used the patent prior to its priority date and after where such use is substantially similar.

By Paul Bicknell. Paul is a trainee specialising in intellectual property litigation. Paul can be contracted via

About the Author

Lawdit Solicitors offer services and advice for litigation, commercial contracts, Intellectual Property and IT legal agreements. We are experts in commercial law with a heavy emphasis on Intellectual Property, Internet and e-commerce law. Lawdit is a member of the International Trademark Association, the Solicitors' Association of Higher Court Advocates and we are the appointed Solicitors to the largest webdesign association in the world, the United Kingdom Website Designers Association.

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Article Published/Sorted/Amended on Scopulus 2011-02-10 14:12:46 in Legal Articles

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