The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2025
Filed:
Oct. 14, 2019
E.on Sverige Ab, Malmo, SE;
Per Rosén, Lund, SE;
Jacob Skogström, Lomma, SE;
Bengt Lindoff, Bjärred, SE;
Fredrik Rosenqvist, Helsingborg, SE;
E.ON SVERIGE AB, Malmo, SE;
Abstract
A filled trench is disclosed. The filled trench comprises: a pair of conduits () for delivering fluid with a different temperature in each of the conduits (), the pair of conduits () being surrounded by filling material; a first section () filled with a filling material of a first type (), wherein the first filled section () of the filled trench occupies a space in between the pair of conduits (); and a second section () filled with a filling material of a second type (). The filling material of the first type () has a first thermal conduction coefficient and the filling material of a second type () has a higher second thermal conduction coefficient. Further, a method for filling such a filled trench is disclosed.