DB

David Beatty

Caterpillar: 6 patents #1,094 of 8,398Top 15%
AP Active Power: 3 patents #9 of 35Top 30%
Overall (All Time): #464,412 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8671686 Systems and methods for providing backup energy to a load Joseph F. Pinkerton, David Perkins 2014-03-18
7693402 Thermal storage unit and methods for using the same to heat a fluid Robert S. Hudson, David Perkins, Donald M. Hudson, Donald Stamets, Joseph F. Pinkerton 2010-04-06
7681395 Systems and methods for providing backup energy to a load Joseph F. Pinkerton, David Perkins 2010-03-23
7127895 Systems and methods for providing backup energy to a load Joseph F. Pinkerton, David Perkins 2006-10-31
6109541 Apparatus for reducing the bounce of a poppet valve Steven J. Bockelman, Jon E. Kasen 2000-08-29
6062186 Method of starting an engine Travis E. Barnes, William H. Lane, Alan R. Stockner 2000-05-16
6012429 Hydraulically-actuated fuel injector with idle stability port Ralph A. Smith, III, Steven Y. Tian 2000-01-11
5992768 Fluid seal for cyclic high pressures within a fuel injector Ralph A. Smith, III 1999-11-30
5950931 Pressure decay passage for a fuel injector having a trapped volume nozzle assembly Chetan J. Desai, George M. Matta 1999-09-14
5788154 Method of preventing cavitation in a fuel injector having a solenoid actuated control valve 1998-08-04
5683228 Oil pump cavitation relief 1997-11-04