Blue Apron is a Unicorn that delivers ingredients and recipes for various meals to individuals seeking to learn more about cooking, and master gourmet techniques. One distinguishing factor between Blue Apron and its competitors is its delivery of wine, and wine pairing suggestions.

Estimated Valuation: $2 Billion
# of patents owned: 0
Competitors: HelloFresh, Plated, Instacart

As an IP strategy I would recommend that Blue Apron consider protecting their packaging (patent), as well as their brand (trademark).

Sources:
http://accounts.ktmine.com/company/ipreport?q=BLUE+APRON+INC&start=&end=
http://finance.yahoo.com/news/the-surprisingly-simple-reason-blue-apron-reached--2b-so-fast-182928633.html
https://www.crunchbase.com/organization/blue-apron