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USPTO Patent Rankings Data through Dec 31, 2025
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David Duane Chapman — 16 Patents

IEInterstate Electronics: 9 patents #3 of 43Top 7%
Tektronix: 6 patents #180 of 1,698Top 15%
LEL3Harris Interstate Electronics: 1 patents #3 of 6Top 50%
Willow View Lane, CA: #19 of 622 inventorsTop 4%
California: #37,952 of 386,348 inventorsTop 10%
Overall (All Time): #284,196 of 4,157,543Top 7%
16 Patents All Time
David Duane Chapman has been granted 16 US patents while listed as an inventor at Interstate Electronics. The first was granted in 1984 and the most recent in June 2023. David Duane Chapman ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list David Duane Chapman in Willow View Lane, CA, US.

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11675090 Satellite positioning system receivers with microelectromechanical systems oscillators Steven B. Alexander 2023-06-13
11101829 Receiver with multi-spectrum parallel amplification 2021-08-24
10866325 Satellite positioning system receivers with microelectromechanical systems oscillators Steven B. Alexander 2020-12-15
10637514 Receiver with multi-spectrum parallel amplification 2020-04-28
10200068 Receiver with multi-spectrum parallel amplification 2019-02-05
10107919 Satellite positioning system receivers with microelectromechanical systems oscillators Steven B. Alexander 2018-10-23
9979420 Receiver with multi-spectrum parallel amplification 2018-05-22
9515690 Receiver with multi-spectrum parallel amplification 2016-12-06
9356639 Receiver with multi-spectrum parallel amplification 2016-05-31
9246664 Receiver with multi-spectrum parallel amplification 2016-01-26
4752928 Transaction analyzer Donald C. Kirkpatrick 1988-06-21 $1,275,000
4748556 Variable tracking word recognizer for detecting the occurrence of a dynamic-variable address Gerd H. Hoeren, Robin L. Teitzel, Steven R. Palmquist 1988-05-31 $2,024,000
4701696 Retargetable buffer probe David W. Bogardus, Robin L. Teitzel 1987-10-20 $2,455,000
4541100 Apparatus including a programmable set-up and hold feature Steven R. Sutton, Michael S. Hagen, Glenn S. Gombert, Steven R. Palmquist 1985-09-10 $1,134,000
4434488 Logic analyzer for a multiplexed digital bus Steven R. Palmquist, Gerd H. Hoeren 1984-02-28 $6,261,000
4425643 Multi-speed logic analyzer Gerd H. Hoeren, Steven R. Palmquist 1984-01-10 $8,805,000