Annular blowout preventer (BOP) packing unit with integrated secondary sealing compound
US-9957770-B2 · May 1, 2018 · US
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Averill William Stephen — Fixed Constructions
Averill William Stephen holds 2 patents in Fixed Constructions, with representative filings summarized below.
| Metric | Value |
|---|---|
| Company | Averill William Stephen |
| Technology | Fixed Constructions |
| Patents in slice | 2 |
| Recent patents in slice | 0 |
| First year | 2016 |
| Last year | 2018 |
Representative patents
Notable publications linking Averill William Stephen to Fixed Constructions.
Recent filings
Latest patents from Averill William Stephen in Fixed Constructions.
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