Indian Institute of Technology (IIT) Delhi, an educational institute involved in business activities in engineering educational sector, has been recently granted a patent for invention titled “A NOVEL PHASE CHANGE MATERIAL COMPOSITION AND A PROCESS FOR PREPARING SAME THEREOF”.
The patent has been issued as granted patent number 305849 filed as application number 1925/DEL/2009 having scope (abstract) of invention as:
“The present invention provides a novel phase change material (PCM) composition comprising an inorganic phase change material, a high surface material, and optionally a nucleating agent and thickening agent. The invention further provides a process for preparing the phase change material composition.”
The primary independent claim (claim 1) of this patent states:
“A novel phase change material composition comprising:
a) inorganic phase change material (PCM);
b) high surface material having free ionizable groups;
c) optionally one or more nucleating agent(s); and
d) optionally one or more thickening agent(s)”
The patent has been granted under International Patent Classification (IPC) C09K 5/00, C09K 3/00, which covers inventions related to:
C09K 3/00 – Materials not provided for elsewhere
C09K 5/00 – Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
This patent can be opposed under post-grant patent opposition within 12 months of the date of grant of this patent.
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