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Related to interference: Constructive interference, Interference of Light, Interference engine


In the law of Patents, the presence of two pending applications, or an existing patent and a pending application that encompass an identical invention or discovery.

When interference exists, the Patent and Trademark Office conducts an investigation to ascertain the priority of invention between the conflicting applications, or the application and the patent. A patent is customarily granted to the earlier invention.


noun antagonism, antipathy, bar, barrier, censure, check, collision, conflict, contravention, damper, disapproval, disturbance, encumbrance, fetter, frustration, hindrance, impediment, imposition, interception, intercession, intermediacy, interruption, intervention, intrusion, invasion, meddling, nuisance, obstruction, onus, opposition, resistance, restraint, setback, stricture, stumbling block
Associated concepts: contempt, frustration of contract, interrerence with contractual relations
See also: bar, barrier, burden, check, collision, conflict, damper, deterrence, deterrent, disadvantage, dispute, embargo, encroachment, encumbrance, fetter, filibuster, frustration, handicap, hiatus, hindrance, impediment, imposition, infringement, intercession, interruption, intervention, intrusion, invasion, mediation, molestation, nuisance, obstruction, onus, opposition, prohibition, resistance, restraint, veto
References in classic literature ?
Without interference from any one he had already formulated plans for quietly putting Monty in his rightful position, and making over to him his share in the Bekwando Syndicate.
Usually this occurred at night, so as to avoid interference from the mounted police of the Territory.
At the same time, I must not permit my prejudices (as you will probably call them) to stand in the way of Miss Emily's interests--supposing them to be really depending on any interference of yours.
My interference, innocent as it was,' she wrote, 'has already been productive of such deplorable results, that I cannot and dare not stir any further in the case of Ferrari.
When my interference had restored my unworthy rival to his freedom, could I submit to the degrading necessity of seeing her in his presence, of speaking to her under his eyes?
One of the Dolphins replied, "We would far rather be destroyed in our battle with each other than admit any interference from you in our affairs.
This gentleman, it may be remembered, had especially recommended himself to my confidence by his friendly interference when the sheriff's officers were in search of my husband's papers.
Geoffrey Delamayn, unhappily, has that reason for resenting his wife's innocent interference with interests of considerable, importance to him," returned Sir Patrick.
Even Grace Roseberry herself was subdued by her own presentiment of some coming interference for which she was completely unprepared.
Aghast and stupefied by the boldness of the interference, Squeers released his hold of Smike, and, falling back a pace or two, gazed upon Nicholas with looks that were positively frightful.
This interference aroused in him a feeling of angry hatred--a feeling he had rarely known before.
I will ask you to believe," the Prince said slowly, "how sincerely I regret this unavoidable interference in a domestic happiness so touching.