One of the most important aspects of trademark law is determining ownership of the federal registration.  For example, what happens if a corporation has been administratively dissolved at the time they file for a trademark or go to renew an existing registration?  It is quite possible the trademark registration is invalid.  Searching corporations is also useful when investigating ownership interests in patents and copyrights.  Clicking on the state below will launch a new window with the search interface for the state’s division of corporations.

<td>Alabama
IllinoisMontanaRhode Island
AlaskaIndianaNebraskaSouth Carolina
ArizonaIowaNevadaSouth Dakota
ArkansasKansasNew HampshireTennessee
CaliforniaKentuckyNew JerseyTexas
ColoradoLouisianaNew MexicoUtah
ConnecticutMaineNew YorkVermont
DelawareMarylandNorth CarolinaVirginia
District of ColumbiaMassachusettsNorth DakotaWashington
FloridaMichiganOhioWest Virginia
GeorgiaMinnesotaOklahomaWisconsin
HawaiiMississippiOregonWyoming
IdahoMissouriPennsylvania