{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "IBM", "item": "https://www.patentleaderboard.com/company/ibm"}, {"@type": "ListItem", "position": 3, "name": "Robert E. Simons", "item": "https://www.patentleaderboard.com/inventor/fl:ro_ln:simons-5"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RS

Robert E. Simons — 293 Patents

IBM: 290 patents #77 of 70,183Top 1%
Poughkeepsie, NY: #4 of 1,613 inventorsTop 1%
New York: #61 of 115,490 inventorsTop 1%
Overall (All Time): #1,396 of 4,157,543Top 1%
293 Patents All Time
Robert E. Simons has been granted 293 US patents while listed as an inventor at IBM. The first was granted in 1980 and the most recent in September 2021. Robert E. Simons ranks #1,396 of 4,157,543 US inventors in our database (top 0.03%). Patent records list Robert E. Simons in Poughkeepsie, NY, US.

Patents per Year

Patents granted per year, 1992 to 2021Bar chart with a peak of 44 patents in 2015.peak 441992: 3 patents19921993: 1 patents1994: 1 patents1995: 4 patents19951996: 1 patents1997: 3 patents1998: 1 patents19981999: 5 patents2000: 4 patents2001: 4 patents20012002: 8 patents2003: 7 patents2004: 9 patents20042005: 4 patents2006: 7 patents2007: 12 patents20072008: 16 patents2009: 11 patents2010: 14 patents20102011: 25 patents2012: 15 patents2013: 9 patents20132014: 22 patents2015: 44 patents2016: 29 patents20162017: 12 patents2018: 5 patents2019: 5 patents20192020: 5 patents2021: 2 patents2021

Issued Patents All Time

Showing 51–75 of 293 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9285050 Thermostat-controlled coolant flow within a heat sink Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2016-03-15 $3,165,000
9288932 Ground-based heat sink facilitating electronic system cooling Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2016-03-15 $3,165,000
9282678 Field-replaceable bank of immersion-cooled electronic components and separable heat sinks Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2016-03-08 $4,405,000
9282675 Thermal expansion-enhanced heat sink for an electronic assembly Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2016-03-08 $4,405,000
9261308 Pump-enhanced, sub-cooling of immersion-cooling fluid Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2016-02-16 $2,821,000
9250024 Pump-enhanced, sub-cooling of immersion-cooling fluid Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2016-02-02 $1,325,000
9250636 Coolant and ambient temperature control for chillerless liquid cooled data centers Timothy J. Chainer, Milnes P. David, Madhusudan K. Iyengar, Pritish R. Parida 2016-02-02 $1,325,000
9253921 Coolant-conditioning unit with automated control of coolant flow valves Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2016-02-02 $1,325,000
9218008 Effectiveness-weighted control of cooling system components Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2015-12-22 $2,572,000
9213343 Effectiveness-weighted control method for a cooling system Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2015-12-15 $6,200,000
9210830 Immersion-cooled and conduction-cooled method for electronic system Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2015-12-08 $3,322,000
9207002 Contaminant separator for a vapor-compression refrigeration apparatus Levi A. Campbell, Richard C. Chu, Evan G. Colgan, Milnes P. David, Michael J. Ellsworth, Jr. +1 more 2015-12-08 $3,322,000
9200851 Pressure control unit and method facilitating single-phase heat transfer in a cooling system Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar 2015-12-01 $5,130,000
9201474 Valve controlled, node-level vapor condensation for two-phase heat sink(s) Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar 2015-12-01 $5,130,000
9173324 Dehumidifying cooling apparatus and method for an electronics rack Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar 2015-10-27 $4,228,000
9167721 Direct facility coolant cooling of a rack-mounted heat exchanger Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar 2015-10-20 $3,961,000
9148982 Separate control of coolant flow through coolant circuits Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2015-09-29 $4,172,000
9148983 Separate control of coolant flow through coolant circuits Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2015-09-29 $4,172,000
9113581 Valve controlled, node-level vapor condensation for two-phase heat sink(s) Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar 2015-08-18 $3,868,000
9102021 Heat sink structure with a vapor-permeable membrane for two-phase cooling Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar 2015-08-11 $2,160,000
9095889 Thermoelectric-enhanced air and liquid cooling of an electronic system Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2015-08-04 $5,566,000
9095942 Wicking and coupling element(s) facilitating evaporative cooling of component(s) Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2015-08-04 $5,566,000
9101078 Data center cooling with an air-side economizer and liquid-cooled electronics rack(s) Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar +1 more 2015-08-04 $5,566,000
9089936 Heat sink structure with a vapor-permeable membrane for two-phase cooling Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar 2015-07-28 $3,451,000
9078379 Flow boiling heat sink with vapor venting and condensing Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar 2015-07-07 $5,899,000