Answer: Hendrickson Usa has 2,017 patents for the period 2009 - 2023.
There are 276 patent families with 553 granted patents and 1,464 applications patents.
The key filing countries are RoW: 931 | US: 437 | EP: 223 | CN: 200 | WO: 199 | KR: 17 | JP: 10.