Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert J. Ferran — 21 Patents

RTReno Technologies: 4 patents #7 of 15Top 50%
S-S-Tec: 1 patents #49 of 93Top 55%
San Diego, CA: #2,009 of 23,606 inventorsTop 9%
California: #27,449 of 386,348 inventorsTop 8%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Robert J. Ferran has been granted 21 US patents while listed as an inventor at Reno Technologies. The first was granted in 1988 and the most recent in August 2017. Robert J. Ferran ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Robert J. Ferran in San Diego, CA, US.

Patents per Year

Patents granted per year, 1988 to 2017Bar chart with a peak of 4 patents in 2015.peak 41988: 1 patents19881989: 1 patents1995: 2 patents19951997: 1 patents1999: 1 patents19992005: 1 patents2006: 1 patents20062012: 1 patents2013: 1 patents20132014: 3 patents2015: 4 patents20152016: 1 patents2017: 3 patents2017

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9719877 Method and apparatus for damping diaphragm vibration in capacitance diaphragm gauges 2017-08-01
9683908 Method and system for monitoring gas pressure for reference cavity of capacitance diaphragm gauge David J. Ferran 2017-06-20
9677964 Apparatus and method for automatic detection of diaphragm coating or surface contamination for capacitance diaphragm gauges David J. Ferran 2017-06-13
9360391 Multi-axis tilt sensor for correcting gravitational effects on the measurement of pressure by a capacitance diaphragm gauge David J. Ferran 2016-06-07
8997576 Method and system for monitoring gas pressure for reference cavity of capacitance diaphragm gauge David J. Ferran 2015-04-07
8997548 Apparatus and method for automatic detection of diaphragm coating or surface contamination for capacitance diaphragm gauges David J. Ferran 2015-04-07
8997575 Method and apparatus for damping diaphragm vibration in capacitance diaphragm gauges 2015-04-07
8965725 Automatic calibration adjustment of capacitance diaphragm gauges to compensate for errors due to changes in atmospheric pressure David J. Ferran 2015-02-24
8901993 Method and apparatus for acquiring noise reduced high frequency signals 2014-12-02
8862420 Multi-axis tilt sensor for correcting gravitational effects on the measurement of pressure by a capacitance diaphragm gauge David J. Ferran 2014-10-14
8760221 Method and apparatus for acquiring noise reduced high frequency signals 2014-06-24
8604655 Multi-phase permanent magnet brushless DC electric motor 2013-12-10
8283831 Brushless DC motor having multiple parallel windings Ilya Kaminsky 2012-10-09
7040244 Watercraft having plural narrow hulls and having submerged passive flotation devices 2006-05-09
6837112 Capacitance manometer having a relatively thick flush diaphragm under tension to provide low hysteresis Daniel Rohrbach, Michael Oswald 2005-01-04 $3,172,000
5857890 Residual gas sensor utilizing a miniature quadrupole array 1999-01-12
5613294 Method of making a residual gas sensor utilizing a miniature quadrupole array 1997-03-25
5401962 Residual gas sensor utilizing a miniature quadrupole array 1995-03-28
5396803 Dual balanced capacitance manometers for suppressing vibration effects 1995-03-14 $535,000
4823603 Capacitance manometer having stress relief for fixed electrode Gordon E. Osterstrom 1989-04-25
4720807 Adaptive pressure control system Anthony J. Tessicini, Timothy Robert Brown 1988-01-19