4. Wells
  5. Valves, closures or changeable restrictors
  6. Longitudinally movable operator

Jonathan P. Davis

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Dual metal seal for a well safety valve

Wells – Valves – closures or changeable restrictors – Longitudinally movable operator
Patent

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Planarization process to achieve improved uniformity across...

Semiconductor device manufacturing: process – Formation of electrically isolated lateral semiconductive... – Grooved and refilled with deposited dielectric material
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1741300

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