RISER SECTIONS AND METHODS FOR MAKING SAME
- Application ID: EP12840931
- Status: █ EXAMINATION IN PROGRESS
This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). Lohr Jöstingmeier & Partner is specialised in E21 (EARTH OR ROCK DRILLING; MINING). Here you find a list of all patent agent firms which are specialized in this IPC class. For a similar patent, they might be a good choice.
- 19.10.2011 - Priority Date (US 201161548850P)
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- 29.10.2014 - Publication A1 (EP2795034)