# Inter partes

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{{short description|Legal term literally meaning "between the parties"}}
{{refimprove|date=July 2008}}

In [law](/source/law), '''''inter partes''''' ([Law Latin](/source/Law_Latin) for 'between the parties'<ref>[http://www.duhaime.org/LegalDictionary/I/Interpartes.aspx Duhaime Legal Dictionary].  Accessed July 3, 2008.</ref>) is a [legal term](/source/List_of_Latin_legal_terms) that can be distinguished from ''[in rem](/source/in_rem)'', which refers to a legal action whose [jurisdiction](/source/jurisdiction) is based on the control of [property](/source/property), or ''[ex parte](/source/ex_parte)'', which refers to a legal action that is by a single [party](/source/Party_(law)).

[Lawsuit](/source/Lawsuit)s (or actions in executive agencies) in which all interested parties have been served with adequate notices and are given a reasonable opportunity to attend and to be heard are referred to as ''inter partes'' proceedings or hearings. When a judgment is given, subject to any right of appeal, it would be inconvenient if the same issues could be endlessly relitigated by the same parties and so they are all bound by the result. However, anyone who was not a party to those proceedings and can demonstrate a legitimate interest in reopening the issue is entitled to petition the [court](/source/court) for the right to be heard. However, in some circumstances, the judgment is given ''in rem'' and so binds everyone, whether a party to the case or not.

[Contract](/source/Contract)s can also be said to be ''inter partes'' and various laws can be relied upon to create and vest rights that exist only on an ''inter partes'' basis; they do not attach as an attribute to a person's [status](/source/status_(law)) and so become ''in rem'' rights.

== Examples ==
* [Opposition procedure before the European Patent Office](/source/Opposition_procedure_before_the_European_Patent_Office)
* [Interference proceeding](/source/Interference_proceeding) (US patent law)
* [''Inter partes'' reexamination in US patent law](/source/Reexamination)
* [Inter partes review](/source/Inter_partes_review) (U.S. patent law)
* [Trademark Trial and Appeal Board](/source/Trademark_Trial_and_Appeal_Board) Petitions

== See also ==
* ''[ex parte](/source/ex_parte)''
* ''[in personam](/source/in_personam)''
* ''[in rem](/source/In_rem_jurisdiction)''
* [Privity of contract](/source/Privity_of_contract)

==References==
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Category:Latin legal terminology

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Adapted from the Wikipedia article [Inter partes](https://en.wikipedia.org/wiki/Inter_partes) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Inter_partes?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.