Career
He was the originator of the 1960s project to investigate disposal of radioactive waste deep inside stable, inland ice sheets, (presented by the French High Commissioner for Nuclear Energy). In relativity physics Philberth discovered the "Zeitgradient" (First Revision: "gradient de temps". EN: "time gradient") (presented by Louis de Broglie), and the relationship between the electromagnetic fundamental values.
Philberth was a promoter of environmental protection and was the initiator of the tenet to protect the environment by taxation laws (submission to the Deutsche Bundestag resulting in change of oil tax laws) and the originator of taxation of lead in petrol (law passed by the Deutsche Bundestag in 1984).
As firm believers in philanthropy, the Philberth brothers are founders of the "PH-Foundation" in the Philippines, sponsoring the education of youths from disadvantaged families (with over 2,000 graduates to date). He died on 8 August 2010 due to pneumonia.