title: [Study on influencing factors of valid patents of compound traditional Chinese medicines for cardiovascular and cerebrovascular diseases on base of regression analysis].
abstract: OBJECTIVE
  To explore the influencing factors for the maintenance of valid patents of compound traditional Chinese medicines in treating cardiovascular and cerebrovascular diseases.
  
  
  METHODS
  Logistic regression analysis was used to detect the influencing factors for the maintenance of valid patents.
  
  
  RESULTS
  The maintenance of valid patents of compound traditional Chinese medicines in treating cardiovascular and cerebrovascular diseases was closely related to many factors, such as their invention, patent rights' transfer, patent claims and patent declaration documents.
  
  
  CONCLUSIONS
  The maintenance of valid patents of compound traditional Chinese medicines in treating cardiovascular and cerebrovascular diseases depends on many factors, such as centralization of efficacy of components of patent compound traditional Chinese medicines, increasing number of dependent claims, and supply of new dosage form and detailed experimental data. Therefore, the transfer of patent rights is of great significance to the maintenance of patents.
authors.affiliation: School of Chinese Materia Medica, Hebei Medical University, Shijiazhuang 050091, China. medicalhistory@sina.com
authors.forename: Xu-Jie
authors.initials: XJ
authors.lastname: Yan
authors.forename: Shi-Ying
authors.initials: SY
authors.lastname: Xiao
mesh_terms: D002318:Cardiovascular Diseases / Q000188:drug therapy*; D002561:Cerebrovascular Disorders / Q000188:drug therapy*; D004365:Drugs, Chinese Herbal / Q000627:therapeutic use*; D006801:Humans; D016015:Logistic Models; D008516:Medicine, Chinese Traditional; D010330:Patents as Topic
chemical_list: D004365:Drugs, Chinese Herbal