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USPTO Patent Rankings Data through Dec 31, 2025
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John E. DeRoo — 22 Patents

EDEta Devices: 10 patents #5 of 12Top 45%
AMD: 6 patents #2,123 of 9,280Top 25%
DEDigital Equipment: 2 patents #602 of 2,100Top 30%
PIPixtronix: 1 patents #47 of 73Top 65%
QUQuantum: 1 patents #325 of 703Top 50%
Oracle: 1 patents #8,339 of 14,854Top 60%
Atlanta, GA: #264 of 7,950 inventorsTop 4%
Georgia: #1,195 of 35,610 inventorsTop 4%
Overall (All Time): #189,202 of 4,157,543Top 5%
22 Patents All Time
John E. DeRoo has been granted 22 US patents while listed as an inventor at Eta Devices. The first was granted in 1993 and the most recent in May 2020. John E. DeRoo ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list John E. DeRoo in Atlanta, GA, US.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10658981 Linearization circuits and methods for multilevel power amplifier systems Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2020-05-19
10164577 Linearization circuits and methods for multilevel power amplifier systems Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2018-12-25
10038461 RF amplifier having a transition shaping filter Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2018-07-31
9490752 RF amplifier having a transition shaping filter Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2016-11-08
9239457 Circuits for controlling display apparatus Stephen R. Lewis, Stephen English, Jianguo Yao, Roger W. Barton 2016-01-19 $14,721,000
9209758 RF amplifier having discrete supply voltages Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2015-12-08
9172336 Method and apparatus for multilevel power amplification Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2015-10-27
9166536 Transmitter architecture and related methods Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2015-10-20
9160287 Linearization circuits and methods for multilevel power amplifier systems Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2015-10-13
9020453 RF amplifier architecture and related techniques Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2015-04-28
8829993 Linearization circuits and methods for multilevel power amplifier systems Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2014-09-09
8824978 RF amplifier architecture and related techniques Mark A. Briffa, Joel L. Dawson, Krenar Komoni, David J. Perreault, Oguzhan Uyar 2014-09-02
7069397 Stream based memory manager with function specific hardware logic for accessing data as a stream in memory Steve Metzger, Paul Phillips, Brian Ramelson 2006-06-27 $5,142,000
6658531 Method and apparatus for accessing graphics cache memory Milivoje Aleksic, James Chih-Shi Yee, Hon Ming Cheng, Andrew Evan Gruber 2003-12-02 $26,582,000
6476811 Method and apparatus for compressing parameter values for pixels in a display frame Steven Morein, Brian J. Favela, Michael T. Wright 2002-11-05 $12,767,000
6295581 Method and apparatus for assuring cache coherency 2001-09-25 $9,460,000
6279080 Method and apparatus for association of memory locations with a cache location having a flush buffer 2001-08-21 $15,374,000
6182196 Method and apparatus for arbitrating access requests to a memory 2001-01-30 $8,977,000
6173367 Method and apparatus for accessing graphics cache memory Milivoje Aleksic, James Chih-Shi Yee, Danny H. M. Cheng, Andrew Evan Gruber 2001-01-09 $12,221,000
5574448 Method and apparatus for encoding data with variable block lengths Lih-Jyh Weng, Michael D. Leis 1996-11-12 $15,862,000
5278703 Embedded servo banded format for magnetic disks for use with a data processing system Bernardo Rub, Robert C. Frame, Samuel B. Skraly, Anne Solli 1994-01-11 $6,620,000
5182752 Method and apparatus for transferring data between a data bus and a data storage device Robert C. Frame, Ann Solli 1993-01-26 $14,084,000