The timeline below contains only milestones documented in the patent specification. Internal development steps not documented there are deliberately omitted.
- Starting point
Design task
The starting point is a shoe insert, in particular for sports shoes, with a sole-shaped carrier and a planar stiffening connected to it. The office identified seven prior-art documents (including DE 10 2010 028 939 A1 and EP 2 442 683 B1).
- Construction
Asymmetric stiffening geometry
The solution described in the patent: a stiffening with a smaller area than the carrier, a clasp-shaped rearfoot with heel recess, clasp legs of different lengths and a tongue-shaped, purely lateral forefoot area.
- 3 July 2020
Patent application
Filed with the German Patent and Trade Mark Office under file number 10 2020 117 662.7. Applicant and later proprietor: Winsole GmbH, Büttelborn. Inventor: Jens Machacek.
- 5 January 2022
Publication of the application
The application is laid open and thus publicly accessible (publication date according to the specification).
- 30 April 2026
Grant of the patent
Publication date of the grant. The certificate lists patent no. 10 2020 117 662, titled "Schuheinlage" (IPC A43B 17/00), for Winsole GmbH.
- + 9 months
Opposition period
Within nine months of publication of the grant, opposition may be filed against the patent (§ 59 German Patent Act); the opposition fee is EUR 200.