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USPTO Patent Rankings Data through Dec 31, 2025
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David W. Siljenberg — 23 Patents

IBM: 22 patents #4,922 of 70,183Top 8%
Globalfoundries: 1 patents #2,221 of 4,424Top 55%
Byron, MN: #15 of 105 inventorsTop 15%
Minnesota: #2,936 of 52,454 inventorsTop 6%
Overall (All Time): #178,160 of 4,157,543Top 5%
23 Patents All Time
David W. Siljenberg has been granted 23 US patents while listed as an inventor at IBM. The first was granted in 1991 and the most recent in June 2020. David W. Siljenberg ranks #178,160 of 4,157,543 US inventors in our database (top 4.3%). Patent records list David W. Siljenberg in Byron, MN, US.

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10684319 Tuning a testing apparatus for measuring skew Layne A. Berge, Benjamin A. Fox, Wesley D. Martin, George Russell Zettles, IV 2020-06-16 $3,682,000
10162002 Tuning a testing apparatus for measuring skew Layne A. Berge, Benjamin A. Fox, Wesley D. Martin, George Russell Zettles, IV 2018-12-25
9712170 Level-shifting latch Anthony Gus Aipperspach, Steven J. Baumgartner, Charles P. Geer, David P. Paulsen, Alan P. Wagstaff 2017-07-18 $2,009,000
9583938 Electrostatic discharge protection device with power management Anthony Gus Aipperspach, Derick G. Behrends, Todd A. Christensen 2017-02-28 $2,397,000
9553584 Level-shifting latch Anthony Gus Aipperspach, Steven J. Baumgartner, Charles P. Geer, David P. Paulsen, Alan P. Wagstaff 2017-01-24 $6,164,000
9496712 Electrostatic discharge protection device with power management Anthony Gus Aipperspach, Derick G. Behrends, Todd A. Christensen 2016-11-15 $2,170,000
9231796 Power aware equalization in a serial communications link John F. Bulzacchelli, Hayden C. Cranford, Jr., Daniel M. Dreps 2016-01-05 $887,000
7945805 Architecture for a physical interface of a high speed front side bus Steven J. Baumgartner, Anthony R. Bonaccio, Timothy C. Buchholtz, Daniel M. Dreps, Charles P. Geer +3 more 2011-05-17 $5,524,000
7624297 Architecture for a physical interface of a high speed front side bus Steven J. Baumgartner, Anthony R. Bonaccio, Timothy C. Buchholtz, Daniel M. Dreps, Charles P. Geer +3 more 2009-11-24 $13,674,000
7224633 eFuse sense circuit William Paul Hovis, Alan J. Leslie, Phil C. Paone, Salvatore N. Storino, Gregory J. Uhlmann 2007-05-29 $6,985,000
7215144 Pre-emphasis driver with constant impedance John Mitby 2007-05-08 $8,960,000
6937060 Method and apparatus for implementing power control in multi-voltage I/O circuits Daniel Bravo Lacap, John Mitby, Daniel G. Young 2005-08-30 $6,623,000
6933743 Dual mode analog differential and CMOS logic circuit Delbert R. Cecchi, Michael Launsbach, Curtis Walter Preuss 2005-08-23 $5,305,000
6735731 Architecture for built-in self-test of parallel optical transceivers John F. Ewen, Stephen C. Wilkinson-Gruber 2004-05-11 $7,887,000
6392215 Laser diode driving circuit Steven J. Baumgartner, Daniel Scott Hedin 2002-05-21 $12,232,000
6177815 High bandwidth mean absolute value signal detector with hysteresis and tunability Steven J. Baumgartner, Anh Duy Ngo 2001-01-23 $22,404,000
6091750 Method and apparatus for providing hot plugging protection for laser optoelectronic devices Matthew James Paschal 2000-07-18 $26,569,000
5999549 Method and apparatus for laser safety Ladd W. Freitag, Raymond J. Thatcher 1999-12-07 $33,125,000
5789989 Delay interpolating voltage-controlled oscillator with linear transfer function Matthew James Paschal 1998-08-04 $10,071,000
5663689 Method and apparatus for providing a high speed charge pump with low static error Steven J. Baumgartner, Rick Allen Philpott 1997-09-02 $11,536,000
5136410 Optical fiber link control safety system Gerald M. Heiling, David A. Knodel, Michael Peterson, Brian Andrew Schuelke, Ronald L. Soderstrom +1 more 1992-08-04 $10,228,000
5069522 Optical fiber link card Timothy R. Block, Marcia B. Ebler, Ladd W. Freitag, Gerald M. Heiling, Spencer C. Holter +3 more 1991-12-03 $29,548,000
5039194 Optical fiber link card Timothy R. Block, Marcia B. Ebler, Ladd W. Freitag, Gerald M. Heiling, Spencer C. Holter +3 more 1991-08-13 $15,056,000