Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
BE

Benjamin N. Eldridge — 233 Patents

FOFormfactor: 224 patents #1 of 177Top 1%
IBM: 1 patents #44,878 of 70,183Top 65%
Danville, CA: #1 of 1,210 inventorsTop 1%
California: #416 of 386,348 inventorsTop 1%
Overall (All Time): #2,394 of 4,157,543Top 1%
233 Patents All Time
Benjamin N. Eldridge has been granted 233 US patents while listed as an inventor at Formfactor. The first was granted in 1994 and the most recent in December 2025. Benjamin N. Eldridge ranks #2,394 of 4,157,543 US inventors in our database (top 0.06%). Patent records list Benjamin N. Eldridge in Danville, CA, US.

Patents per Year

Patents granted per year, 1994 to 2022Bar chart with a peak of 25 patents in 2010.peak 251994: 1 patents19941997: 1 patents1998: 5 patents1999: 9 patents19992000: 6 patents2001: 7 patents2002: 13 patents20022003: 17 patents2004: 20 patents2005: 12 patents20052006: 20 patents2007: 22 patents2008: 15 patents20082009: 21 patents2010: 25 patents2011: 15 patents20112012: 2 patents2013: 8 patents2014: 2 patents20142015: 1 patents2017: 1 patents2018: 2 patents20182019: 1 patents2020: 3 patents2022: 1 patents2022

Issued Patents All Time

Showing 26–50 of 233 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7990164 Method of designing a probe card apparatus with desired compliance characteristics 2011-08-02 $5,245,000
7977956 Method and apparatus for probe card alignment in a test system Keith J. Breinlinger, Eric D. Hobbs, Douglas S. Ondricek 2011-07-12 $1,702,000
7967621 Electrical contactor, especially wafer level contactor, using fluid pressure 2011-06-28 $5,052,000
7956633 Stacked guard structures 2011-06-07 $2,637,000
7952375 AC coupled parameteric test probe A. Nicholas Sporck, Charles A. Miller 2011-05-31 $5,633,000
7948252 Multilayered probe card Gary W. Grube, Igor Y. Khandros, Gaetan L. Mathieu, Poya Lotfizadeh, Chih-Chiang Tseng 2011-05-24 $5,593,000
7936177 Providing an electrically conductive wall structure adjacent a contact structure of an electronic device Keith J. Breinlinger, David Pritzkau 2011-05-03 $5,965,000
7930219 Method and system for designing a probe card Mark W. Brandemuehl, Stefan Graef, Yves Parent 2011-04-19 $2,995,000
7920989 Remote test facility with wireless interface to local test facilities Igor Y. Khandros 2011-04-05 $6,205,000
7898242 Probe card assembly with an interchangeable probe insert Carl V. Reynolds, Nobuhiro Kawamata, Takao Saeki 2011-03-01 $2,831,000
7897435 Re-assembly process for MEMS structures Gaetan L. Mathieu 2011-03-01 $2,831,000
7884006 Method to build a wirebond probe card in a many at a time fashion Bruce Barbara 2011-02-08 $2,650,000
7880489 Printing of redistribution traces on electronic component Yoshikazu Hatsukano, Igor Y. Khandros, Gaetan L. Mathieu 2011-02-01 $2,595,000
7868632 Composite motion probing Timothy E. Cooper, Igor Y. Khandros, Rod Martens, Gaetan L. Mathieu 2011-01-11 $5,253,000
7852094 Sharing resources in a system for testing semiconductor devices Matthew Chraft, Roy J. Henson, A. Nicholas Sporck 2010-12-14 $2,427,000
7845072 Method and apparatus for adjusting a multi-substrate probe structure Eric D. Hobbs, Lunyu Ma, Gaetan L. Mathieu, Steven T. Murphy, Makarand Shinde +1 more 2010-12-07 $5,601,000
7841863 Spring interconnect structures Gaetan L. Mathieu, Gary W. Grube, Richard A. Larder 2010-11-30 $2,583,000
7825674 Probe card configuration for low mechanical flexural strength electrical routing substrates Makarand Shinde, Richard A. Larder, Timothy E. Cooper, Ravindra V. Shenoy 2010-11-02 $1,930,000
7821255 Test system with wireless communications Igor Y. Khandros, Charles A. Miller, A. Nicholas Sporck 2010-10-26 $5,038,000
7808259 Component assembly and alignment Eric D. Hobbs, Gaetan L. Mathieu 2010-10-05 $4,173,000
7798822 Microelectronic contact structures Gary W. Grube, Igor Y. Khandros, Gaetan L. Mathieu 2010-09-21 $4,372,000
7737709 Methods for planarizing a semiconductor contactor Gaetan L. Mathieu, Gary W. Grube 2010-06-15 $5,280,000
7732713 Method to build robust mechanical structures on substrate surfaces Gary W. Grube, Gaetan L. Mathieu, Chadwick D. Sofield 2010-06-08 $942,000
7733106 Apparatus and method of testing singulated dies Thomas H. Dozier, II, David S. Y. Hsu, Igor Y. Khandros, Charles A. Miller 2010-06-08 $942,000
7731503 Carbon nanotube contact structures John K. Gritters, Igor Y. Khandros, Rod Martens, Gaetan L. Mathieu 2010-06-08 $942,000