patent period

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patent period

The time during a parasitic disease that organisms are demonstrable in the body.
See also: period


1. open, unobstructed, or not closed.
2. apparent, evident.

patent ductus arteriosus (PDA)
abnormal persistence of an open lumen in the ductus arteriosus, between the aorta and the pulmonary artery, after birth. The ductus arteriosus is open during prenatal life, allowing most of the blood of the fetus to bypass the lungs, but normally this channel closes shortly before birth. When the ductus arteriosus remains open, it places special burdens on the left ventricle and causes a diminished blood flow in the aorta. May remain open for up to 5 days in foals. One of the most common congenital heart defects in dogs, but less common in cats. Causes a continuous 'machinery' murmur loud in systole, soft in diastole, and 'bounding' pulse.
patent ductus venosus
see ductus venosus.
patent foramen ovale
see foramen ovale (1).
patent medicine
a drug or remedy protected by a trademark, available without a prescription.
patent period
the period during a disease in which the causative agent can be detected by clinicopathological tests, e.g. for helminth eggs.
patent urachus
the urachus persists after birth and allows urine to drip out of the bladder through the umbilicus. See also urachus.
patent ventricular septum
includes several entities characterized by incomplete closure of ventricular wall. Characterized by palpable cardiac thrill and audible pansystolic murmur on both sides of the chest at birth, accompanied by exercise intolerance and developing dyspnea at rest.
References in periodicals archive ?
But with trademark protection available, inventors can maximize profits over both the patent and post-patent periods by expanding their customer base during the patent period in order to create brand loyalty they can exploit after the patent's expiration.
Thus, the applicant will argue the case to the Patent Office at the expense of the time in his or her own patent period.
It took away innovator patent rights by permitting the generic firm to manufacture and test its drug during the incumbent's patent period.
EGA says the EU is already losing around Euro 1 billion a year as EU generic companies must develop and manufacture their products outside the EU, and the situation will worsen for Europe if there is no harmonisation of practices with countries outside the EU: "Our only hope at present is that laws in central European countries like Hungary, which have patent protection similar to the EU but allows for generic R&D during the patent period, are not forced to change as a result of EU accession.
If the patent period is too short, there could be a chilling effect on future innovations.
The Company has obtained a state patent for the new product and will be the only Chinese firm authorized to manufacture this type of battery during the patent period.
It faces between-patent competition from a number of competing patents during the patent period, and within-patent competition from a number of imitating competitors after the patent has expired.