4. Communications, electrical: acoustic wave systems and devices
  5. Underwater system
  6. Analog speech communication

David F. May

Inventor

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

Details

Inventor

active

Bone conduction speaker and microphone

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Body contact wave transfer
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Centrifugal filter for removing soot from engine oil

Imperforate bowl: centrifugal separators – With means for furnishing auxiliary fluid to material or... – Energy of fluid utilized for driving bowl
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Centrifugal filter utilizing a partial vacuum condition to...

Imperforate bowl: centrifugal separators – With means for furnishing auxiliary fluid to material or... – Energy of fluid utilized for driving bowl
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Exhaust aftertreatment system and method for an internal...

Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus to determine flow rate with the...

Measuring and testing – Volume or rate of flow – By measuring transit time of tracer or tag
Reexamination Certificate

  [ 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

David F. May does not yet have a rating. At this time, there are no reviews or comments for this inventor.

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

Rate now

     

Profile ID: LFUS-PAI-P-1321116

  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