ANTI-EXTRUSION BARRIER FOR PACKING ELEMENT
- Application ID: EP17729308
- Status: █ Request for examination was made
This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). Marks & Clerk is specialized in E21. Marks & Clerk 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.
- 02.06.2016 - Priority Date (US 201615171671)
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