4. Liquid purification or separation
  5. Filter
  6. Movable medium

Robert W. Evans

Inventor

Rate now
  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Inventor

active

Accelerator for fishing jar with hydrostatic assist

Boring or penetrating the earth – Below-ground impact members – Fluid-operated
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Ball valve assembly

Fluid handling – Processes
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Ball valve assembly

Wells – Valves – closures or changeable restrictors – Rotated operator
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Belleville spring guide system

Spring devices – Bendable along flat surface – Ring or annular spider
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Car head-up displays including an adjustable plane mirror lensle

Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Robert W. Evans does not yet have a rating. At this time, there are no reviews or comments for this inventor.

If you have personal experience with Robert W. Evans, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Robert W. Evans will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-P-289239

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.

Canada

 Charities
 Companies
 MP Candidates
 Patents
 Employee Salary Disclosure

World

 Places of the World
 Scientific Papers

United States

 Banks
 Companies
 Counties
 Patents
 Employee Salary Disclosure