William E. Main has been granted 27 US patents while listed as an inventor at Motorola . The first was granted in 1981 and the most recent in November 2005. William E. Main ranks #142,059 of 4,157,543 US inventors in our database (top 3.4%). Patent records list William E. Main in Mesa, AZ, US.
Patents per Year Patents granted per year, 1981 to 2005 Bar chart with a peak of 4 patents in 1990. peak 4 1981: 1 patents 1981 1982: 1 patents 1984: 1 patents 1984 1986: 1 patents 1987: 1 patents 1987 1989: 2 patents 1990: 4 patents 1990 1995: 1 patents 1997: 4 patents 1997 1998: 3 patents 1999: 1 patents 1999 2001: 3 patents 2002: 2 patents 2002 2004: 1 patents 2005: 1 patents 2005
Issued Patents All Time
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Showing 1–25 of 27 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6965653 Circuit and method for processing an automatic frequency control signal Danielle L. Coffing , Klaas Wortel 2005-11-15
6834086 Demodulator and method for second harmonic cancellation Danielle L. Coffing 2004-12-21
6407615 Temperature compensation circuit and method of compensating Danielle L. Coffing 2002-06-18
$25,548,000
6369647 Demodulator circuit and method of tuning Danielle L. Coffing , Klaas Wortel 2002-04-09
$26,952,000
6265917 Circuit and method for altering the frequency of a signal Jeffrey C. Durec 2001-07-24
$60,515,000
6249170 Logarithmic gain control circuit and method Danielle L. Coffing , Jeffrey C. Durec 2001-06-19
$55,603,000
6208205 Amplifier circuit and method for reducing noise therein Danielle L. Coffing 2001-03-27
$43,850,000
5886547 Circuit and method of controlling mixer linearity Jeffrey C. Durec 1999-03-23
$12,098,000
5754038 Method and circuit for current regulation Jeffrey C. Durec 1998-05-19
$8,064,000
5751192 Integrated circuit and method for generating a transimpedance function — 1998-05-12
$5,446,000
5729176 Linear differential gain stage Jeffrey C. Durec 1998-03-17
$8,068,000
5703478 Current mirror circuit — 1997-12-30
$8,501,000
5650749 FM demodulator using injection locked oscillator having tuning feedback and linearizing feedback — 1997-07-22
$23,856,000
5617056 Base current compensation circuit David K. Lovelace , Jesus S. Pena-Finol 1997-04-01
$16,323,000
5592076 Base current supply circuit for multiple current sources Jeffrey C. Durec 1997-01-07
$20,208,000
5424682 Variable gain amplifier circuit Michael L. Gomez , Nicholas Weiner 1995-06-13
$17,605,000
4977381 Differential relaxation oscillator — 1990-12-11
$3,395,000
4958122 Current source regulator — 1990-09-18
$16,568,000
4928068 FM demodulator — 1990-05-22
$5,789,000
4926132 FM detector with reduced distortion — 1990-05-15
$3,911,000
4831337 Wideband amplifier — 1989-05-16
$3,468,000
4808907 Current regulator and method — 1989-02-28
$3,446,000
4709171 Current limiter and method for limiting current — 1987-11-24
$4,839,000
4567441 Circuit and method for linearizing the output signal of an FM detector — 1986-01-28
$5,835,000
4442549 Meter drive circuit — 1984-04-10
$5,107,000
