Question from investors:
Do have Envion really a ventilation Patent?

Check :

Source: Central Customer Service
089 2195-1000

1. DPMA München: https://www.dpma.de/dpma/kontakt/index.html Patent-Anmeldenummer: 102017125540.0
18monate geheim 2017

English by google
Patent 102017125540.0 is available at DPMA

File number / patent is a secret from the date of registration for 18 months.

An insight is only possible for a fee (90 €), and

a written explanation of why you want to view patent files.

After that, DPMA decides whether to patroll the patentee owner to ask him if they can access the patent data. Eventually a part of the 90 euro will be refunded afterwards.

Or you take the easy way and clear everything directly with the patente owner