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Charles E. Heger — 28 Patents

ZIZircon: 24 patents #1 of 29Top 4%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Saratoga, CA: #354 of 2,933 inventorsTop 15%
California: #19,067 of 386,348 inventorsTop 5%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
Charles E. Heger has been granted 28 US patents while listed as an inventor at Zircon. The first was granted in 1992 and the most recent in May 2010. Charles E. Heger ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list Charles E. Heger in Saratoga, CA, US.

Patents per Year

Patents granted per year, 1992 to 2010Bar chart with a peak of 5 patents in 1999.peak 51992: 1 patents19921993: 1 patents1994: 2 patents19941996: 4 patents1997: 4 patents19971998: 1 patents1999: 5 patents19992000: 2 patents2001: 1 patents20012003: 1 patents2005: 1 patents20052006: 1 patents2007: 1 patents20072008: 1 patents2010: 2 patents2010

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
7714567 Power cable magnetic field sensor — 2010-05-11
7671576 Ratiometric AC wire tracer Richard Meech Halliday 2010-03-02
7318344 Wireless swimming pool water level system — 2008-01-15
7181853 Modular laser layout system Norman L. Krantz, Lawrence F. Miller, Charles J. Stauss 2007-02-27
6989662 Sensor auto-recalibration Lawrence F. Miller 2006-01-24
6922063 Apparatus and method for capacitive level sensor — 2005-07-26
6568264 Wireless swimming pool water level system — 2003-05-27
6198271 Electronic wall-stud sensor display Paul W. Dodd 2001-03-06
6100839 Enhanced impulse radar system William M. Sunlin 2000-08-08
6023159 Stud sensor with dual sensitivity — 2000-02-08
5956260 Electronic level displaying inclination having digital and analog displays Paul W. Dodd 1999-09-21
5917314 Electronic wall-stud sensor with three capacitive elements Paul W. Dodd 1999-06-29
5905455 Dual transmitter visual display system James C. Long, Noel H. C. Marshall, Paul W. Dodd 1999-05-18
5900833 Imaging radar suitable for material penetration William M. Sunlin 1999-05-04
5896102 Swept range gate radar system for detection of nearby objects — 1999-04-20
5854603 Ultra-wideband swept range gate radar system with variable transmitter delay — 1998-12-29
5640168 Ultra wide-band radar antenna for concrete penetration James C. Long, Noel H. C. Marshall 1997-06-17
5619128 Stud sensor with over-stud miscalibration via circuit which stores an initial calibration density, compares that to a current test density and outputs result via indicator — 1997-04-08
5594669 Electronic fence post level — 1997-01-14
5592745 Electronic level displaying inclination with regard to instrument length Gary R. Schultheis 1997-01-14
5543799 Swept range gate radar system for detection of nearby objects — 1996-08-06
5541605 Swept range gate short range radar system — 1996-07-30
5488779 Electronic level with stereo sound indication Gary R. Schultheis 1996-02-06
5479715 Electronic level displaying inclination using a multi-segment fan-like display Gary R. Schultheis 1996-01-02
5352974 Stud sensor with digital averager and dual sensitivity — 1994-10-04

Frequent Collaborators

Paul W. Dodd4 shared
Gary R. Schultheis3 shared
Lawrence F. Miller2 shared
Noel H. C. Marshall2 shared
William M. Sunlin2 shared
James C. Long2 shared

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Seok Jin Kim28
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