Answer: Tenneco Automotive Operating Company has 2,497 patents for the period 2009 - 2023.
There are 427 patent families with 765 granted patents and 1,732 applications patents.
The key filing countries are US: 729 | CN: 522 | RoW: 512 | WO: 298 | KR: 180 | JP: 148 | EP: 96 | GB: 12.