Nicardipine is a medication used to treat high blood pressure and chest pain caused by angina. It belongs to a class of drugs known as calcium channel blockers. In response to your question about a patent for Nicardipine ready to use, I have examined the sources you provided.
Unfortunately, the first source you provided, DrugPatentWatch, does not contain specific information about a patent for Nicardipine ready to use. It primarily provides information about drug patents, including their expiration dates and regulatory exclusivities.
The second source, a patent document from the National Center for Biotechnology Information (NCBI) database, describes a patent for a "Stable aqueous pharmaceutical composition of nicardipine hydrochloride." The patent, with the number US7612102, was granted in November 2009. It discloses a specific formulation of Nicardipine hydrochloride in an aqueous solution that remains stable over time. However, it does not explicitly mention a "ready to use" form of Nicardipine.
The third source you provided is a package insert from DailyMed, which provides information about the approved use, dosage, and administration of Nicardipine. It does not contain information about a patent for a ready-to-use form of Nicardipine.
In conclusion, based on the sources you provided, there is no explicit information about a patent for a ready-to-use form of Nicardipine. It is important to note that patents can be complex and may have multiple variations or extensions. It is advisable to consult with a legal professional or contact the relevant patent authorities for the most up-to-date and accurate information regarding patents for Nicardipine or any other medication.
 "Stable aqueous pharmaceutical composition of nicardipine hydrochloride" - US Patent US7612102. National Center for Biotechnology Information (NCBI). https://pubchem.ncbi.nlm.nih.gov/patent/US7612102
 "NICARDIPINE" - DailyMed. U.S. National Library of Medicine. https://dailymed.nlm.nih.gov/dailymed/downloadpdffile.cfm?setId=a3e33add-0d09-423a-9109-42e5ba7148d5