The newest chapter in the extensive and longstanding litigation around Australian patent no. 623144, properties of Danish pharmaceutical company H. Lundbeck A/S [1], highlights a practical difficulty for generic manufacturers.


Your Decision. Lundbeck sought to prolong the phrase from the patent, but did so only right before the patent expired. This was well past the usual deadline, and thus Inventhelp Inventions Store were required to seek an extension of energy to ensure the application form for extension of term that need considering. Several generic manufacturers, including Sandoz, launched products right after the patent expired but before the applying extending the time where you can make an application for an extension of term was considered. Since they launched at a time when Lundbeck had no patent rights, Sandoz argued they needs to have been shielded from patent infringement once rights were restored. However, the legal court held that the extension of term needs to be retrospective., therefore Sandoz infringed the patent.

Background. This step arises in unusual circumstances. The anti-depressant drug citalopram is really a racemic mixture of these two enantiomers, the ( ) enantiomer and also the (-) enantiomer. Lundbeck held patents within the racemic mixture and had marketed the racemic mixture as CIPRAMIL. The patent in suit claims the more-effective ( ) enantiomer. Lundbeck sought an extension of term based on the registration from the ( ) enantiomer, as LEXAPRO, on the Australian Register of Therapeutic Goods (ARTG). Within an earlier chapter in this saga, it was established the applying for extension of term needs to have been based on the earlier registration on the ARTG of citalopram, as citalopram (CIPRAMIL) has the ( ) enantiomer, and not on the registration from the ( ) enantiomer (LEXAPRO) on the ARTG .

Lundbeck created a new application for extension of term on 12 June 2009, your day before patent no. 623144 expired. Now the application form for extension of term was based on the ARTG registration for Technology. This was accompanied by a software for extension of time (considering that the application needs to have been made within 6 months of the date in the ARTG registration of CIPRAMIL, making the deadline 26 July 1999) which had to be successful for that extension of term to get approved. A delegate of Commissioner held the extension of your time was allowable because the original deadline to make the application form for extension of term was missed as a result of genuine misunderstanding in the law on the area of the patentee.

Sandoz released their generic product for the market on 15 June 2009, just two days right after the expiry of Lundbeck’s patent, and merely 3 days right after the application for extension of term was made. The Commissioner of Patents approved an extension of the patent term on 25 June 2014 [3]. Lundbeck filed patent infringement proceedings within the Federal Court of Australia on 26 June 2014.

Mind the space. In cases like this the Federal Court held which a decision regarding the extension from the term of a patent could be delivered following expiry of the patent, and the effect of that delivery is retrospective. Although the application for extension of term was filed from time, this was able to be rectified by applying to increase the deadline since the failure to submit over time was because of an “error or omission” on the area of the patentee. Although Sandoz launched their product at a time if it seemed Getting A Patent had no patent rights, there was clearly no gap in protection since the patent never ceased nor must be restored.

This can be contrasted with the situation when a patent is restored when, as an example, a renewal fee pays from time. Within these circumstances, since the patent did temporarily cease, steps taken by another party vagrgq exploit the patented invention in the “gap” period will not open the party to infringement proceedings.

The effect on generics. Generic manufacturers who seek to launch immediately after the expiry of any patent should take notice of the possibility that an application for an extension of term can be created at a late date America if some error or omission cause this not done within the prescribed time. Such extensions of patent terms will have retrospective effect if granted after the expiry from the patent. It really is understood that this decision is under appeal.

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