The first was developed by the Badische Anilin- & Soda-Fabrik (BASF) and is based on the Wittig reaction with Wittig himself as patent holder:The second is a Grignard reaction, elaborated by Hoffman-La Roche from the original synthesis of Inhoffen et al.
The second is a Grignard reaction, elaborated by F. Hoffman-La Roche & Co. Ltd (Roche) from the original synthesis of Inhoffen et al.