Historie

1931	Foundation of the Patent Attorneys office by Patent Attorney Dr. Otto Loesenbeck
1960	Patent Attorney Alexander Stracke joins the firm
1966	Patent Attorney Karl-Otto Loesenbeck joins the firm
1966	Retirement of the founder, Dr. Otto Loesenbeck
1998	Patent Attorney Peter Specht joins the firm
1999	Patent Attorney Jan Dantz joins the firm
2000	Retirement of Patent Attorney Alexander Stracke
2004	Retirement of Patent Attorney Karl-Otto Loesenbeck Attorney at Law Anja-Silja Loesenbeck joins the firm
2005	relocation into the new premises "Am Zwinger"
2006	The patent law firm celebrates 75 anniversary and the opening of the Munich branch office
2007	Patent Attorney Dr. Thomas Wonderschütz joins the firm
2010	new branch office in Kassel; succession of Patent Attorney Frhr. v. Schorlemer Patent Attorney Dr. Hubertus Kleine joins the firm