US Patent Issued to CATALER on March 4 for "Particulate filter" (Japanese Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,239,968, issued on March 4, was assigned to CATALER Corp. (Kakegawa, Japan).

"Particulate filter" was invented by Ryota Onoe (Kakegawa, Japan), Ryo Tasaki (Kakegawa, Japan), Momoko Iwai (Kakegawa, Japan) and Yamato Matsushita (Kakegawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A particulate filter includes a base material having a wall-flow structure including porous partition walls partitioning inlet and outlet cells, and wash-coating layers held inside partition walls. The wash-coating layers include inlet layers each formed from vicinity of an end portion at exhaust gas inflow side to have predetermined length and thickness and outlet lay...