Is this an active patent that was approved. What company currently holds the rights to this patent for topical dantrolene? Thank you.

2 Answers 2


Per the following link, this international application was denied entry into the European and German patent offices: https://worldwide.espacenet.com/publicationDetails/inpadoc?CC=WO&NR=2014118527A1&KC=A1&FT=D&ND=3&date=20140807&DB=&locale=en_EP

Per the following link, the UK application that this PCT claimed priority to has also been abandoned: https://www.ipo.gov.uk/p-ipsum/Case/ApplicationNumber/GB1301774.4

There do not appear to be any other applications in other offices or countries using this PCT as a priority.


As per my knowledge, this isn't active patent. the legal status of this patent is "Application deemed to be withdrawn". This patent is assigned by an individual(inventor). Further, this patent was claiming the priority from the provisional of GB. This might be due to GB provisional could not file an application. Thanks

  • Where do you get that status from? To me, it simply seems to have run its life without entering national phase: quite a different proposition. It also does not appear to have been assigned at all: the original inventor cannot assign it to themselves. Finally, the UK has not had provisional applications for 30ish years.
    – Maca
    Mar 24, 2017 at 5:41
  • Hi Maca, thanks for the reviewing my answer. I think i have given the right details. 1) Legal status can be find out through the EP register which say "The application is deemed to be withdrawn". 2) Yeah. it doesnt assigned to any applicant. there must be some legal issues as u mentioned " the original inventor cannot assign it to themselves". 3) UK has provisional application .Wipo claims the priority from GB201301774D0. Further , a link is attached which mentions about GB has provisional application. (Link: careeraddict.com/…) .
    Mar 24, 2017 at 6:20
  • Link for legal status of Wipo:register.epo.org/application?number=EP14704623&tab=main
    Mar 24, 2017 at 6:21
  • please let us know if there is some error. I m new toward the legal things. but i knew about patents.
    Mar 24, 2017 at 6:22
  • The EP register you linked to gives the status of the automatic EP regional phase entry of the PCT, not the PCT itself. That is, the event occurs for any PCT application designating EP which does not formally enter EP regional phase, regardless of the status of the PCT itself.
    – Maca
    Mar 24, 2017 at 6:32

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