Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Michael W. Null — 8 Patents

Motorola: 5 patents #2,518 of 14,142Top 20%
SSStmicroelectronics Sa: 2 patents #2,467 of 1,676Top 150%
STSeagate Technology: 1 patents #4,397 of 4,722Top 95%
Schaumburg, IL: #175 of 1,089 inventorsTop 20%
Illinois: #11,515 of 84,256 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Michael W. Null has been granted 8 US patents while listed as an inventor at Motorola. The first was granted in 1982 and the most recent in May 2000. Michael W. Null ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Michael W. Null in Schaumburg, IL, US.

Patents per Year

Patents granted per year, 1982 to 2000Bar chart with a peak of 3 patents in 1985.peak 31982: 1 patents19821984: 1 patents19841985: 3 patents19851994: 1 patents19941999: 1 patents19992000: 1 patents2000

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6064539 Method of retracting a read and/or write head for parking Francesco Carobolante, Karl M. Schlager 2000-05-16 $56,347,000
5920183 Voltage regulator for regulating its output voltage selectively with respect to more than one voltage 1999-07-06 $25,563,000
5327053 Apparatus and method for detecting rotor position in a sensorless and brushless DC motor Christopher E. Mann, Robert P. Cloutier 1994-07-05 $4,193,000
4514651 ECL To TTL output stage Ira Miller 1985-04-30 $4,005,000
4501979 Current amplifier having multiple selectable outputs Robert N. Dotson, Robert B. Davis 1985-02-26 $7,951,000
4501974 Pulse stretching and level shifting circuit Ira Miller, Robert N. Dotson 1985-02-26 $7,951,000
4485352 Current amplifier Robert B. Davies, Robert N. Dotson 1984-11-27 $5,391,000
4320255 Radio with audio controls and associated displays Charles W. Bethards, William A. Burzynski 1982-03-16 $3,143,000