LandOfFree - US Patents - Listing for Boring or penetrating the earth

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Screened hollow stem auger for use in well drilling and testing

Boring or penetrating the earth – With well-type screen

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Screw thread coupling

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Screw thread structure

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Screw thread structure for percussion drill driver sub and case

Boring or penetrating the earth – With tool shaft detail

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Sea drilling jig

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seafloor diverter

Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seafloor drilling apparatus

Boring or penetrating the earth – Boring a submerged formation

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal and seal shield assembly for rotary drill bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal assembly for drill bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal assembly for roller cutter drill bit having a pressure bala

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal assembly for roller cutter drill bit having a pressure bala

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal assembly for rotary drill bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal cage assembly for relatively movable members

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal for a rolling cone cutter earth boring bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal for well drilling assembly

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal insert ring for roller cone bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal insert ring for roller cone bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Seal protection for rock bits

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Sealed and lubricated rock bit with air protected seal ring

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – With fluid pressure-actuated feed means

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Sealed and lubricated rotary cone drill bit having improved seal

Boring or penetrating the earth – Processes

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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