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

David Callahan — 31 Patents

Microsoft: 22 patents #1,491 of 40,388Top 4%
Intel: 9 patents #4,462 of 30,777Top 15%
Seattle, WA: #680 of 21,776 inventorsTop 4%
Washington: #2,479 of 76,902 inventorsTop 4%
Overall (All Time): #115,823 of 4,157,543Top 3%
31 Patents All Time
David Callahan has been granted 31 US patents while listed as an inventor at Microsoft. The first was granted in 2009 and the most recent in November 2017. David Callahan ranks #115,823 of 4,157,543 US inventors in our database (top 2.8%). Patent records list David Callahan in Seattle, WA, US.

Issued Patents All Time

Showing 1–25 of 31 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9832661 Access point management Gurdev S Sethi, Mitchell G Lacey, Kirk M Brackebusch, Aravind Seshadri, Manish V Tangri +1 more 2017-11-28 $49,736,000
9477515 Handling operating system (OS) transitions in an unbounded transactional memory (UTM) mode Koichi Yamada, Landy Wang, Martin Taillefer, Arun U. Kishan, Jan Gray +2 more 2016-10-25 $11,658,000
9280397 Using buffered stores or monitoring to filter redundant transactional accesses and mechanisms for mapping data to buffered metadata Ali-Reza Adl-Tabatabai, Gad Sheaffer, Bratin Saha, Jan Gray, Burton Smith +1 more 2016-03-08 $14,558,000
9195600 Mechanisms to accelerate transactions using buffered stores Ali-Reza Adl-Tabatabai, Yang Ni, Bratin Saha, Vadim Bassin, Gad Sheaffer +1 more 2015-11-24 $18,043,000
9069670 Mechanisms to accelerate transactions using buffered stores Ali-Reza Adl-Tabatabai, Yang Ni, Bratin Saha, Vadim Bassin, Gad Sheaffer +1 more 2015-06-30 $18,547,000
8959517 Cancellation mechanism for cancellable tasks including stolen task and descendent of stolen tasks from the cancellable taskgroup William R. Messmer, Paul F. Ringseth, Niklas Gustafsson 2015-02-17 $31,357,000
8887162 Persistent local storage for processor resources Paul F. Ringseth, Rick Molloy, Niklas Gustafsson 2014-11-11 $24,503,000
8886894 Mechanisms to accelerate transactions using buffered stores Ali-Reza Adl-Tabatabai, Yang Ni, Bratin Saha, Vadim Bassin, Gad Sheaffer +1 more 2014-11-11 $20,178,000
8856466 Mechanisms to accelerate transactions using buffered stores Ali-Reza Adl-Tabatabai, Yang Ni, Bratin Saha, Vadim Bassin, Gad Sheaffer +1 more 2014-10-07 $15,242,000
8825895 Access point capacity management Gurdev S Sethi, Mohanraj Dharmarajan, Kirk M Brackebusch, Manish V Tangri, Mitchell G Lacey +1 more 2014-09-02 $31,345,000
8812796 Private memory regions and coherence optimizations Jan Gray, Burton Smith, Gad Sheaffer, Ali-Reza Adl-Tabatabai 2014-08-19 $30,011,000
8719514 Software filtering in a transactional memory system Ali-Reza Adl-Tabatabai, Jan Gray, Vinod Grover, Bratin Saha, Gad Sheaffer 2014-05-06 $12,959,000
8688951 Operating system virtual memory management for hardware transactional memory Koichi Yamada, Gad Sheaffer, Ali-Reza Adl-Tabatabai, Landy Wang, Martin Taillefer +3 more 2014-04-01 $35,800,000
8548442 Syndication of multiple service instances Brian R. Daugherty, Srivaths Badrinath Copparam 2013-10-01 $29,148,000
8521995 Handling operating system (OS) transitions in an unbounded transactional memory (UTM) mode Koichi Yamada, Gad Sheaffer, Jan Gray, Landy Wang, Martin Taillefer +2 more 2013-08-27 $11,735,000
8489864 Performing escape actions in transactions Gad Sheaffer, Jan Gray, Martin Taillefer, Ali-Reza Adl-Tabatabai, Bratin Saha +2 more 2013-07-16 $16,054,000
8407728 Data flow network Niklas Gustafsson 2013-03-26 $14,876,000
8380576 Value determination for mobile transactions Marius Ionescu, Srivaths Badrinath Copparam, Vijay Narula, Sirius Kuttiyan 2013-02-19 $10,297,000
8370577 Metaphysically addressed cache metadata Gad Sheaffer, Jan Gray, Ali-Reza Adl-Tabatabai, Shlomo Raikin 2013-02-05 $10,554,000
8316194 Mechanisms to accelerate transactions using buffered stores Ali-Reza Adl-Tabatabai, Yang Ni, Bratin Saha, Vadim Bassin, Gad Sheaffer +1 more 2012-11-20 $10,358,000
8271768 Concurrent handling of exceptions in received aggregate exception structure with supplied exception handlers and marking handled exceptions John Duffy, David L. Detlefs, Vance Morrison, Brian Grunkemeyer, Eric D. Tribble 2012-09-18 $20,371,000
8250331 Operating system virtual memory management for hardware transactional memory Koichi Yamada, Gad Sheaffer, Ali-Reza Adl-Tabatabai, Landy Wang, Martin Taillefer +3 more 2012-08-21 $14,505,000
8229907 Hardware accelerated transactional memory system with open nested transactions Jan Gray, Martin Taillefer, Yosseff Levanoni, Ali-Reza Adl-Tabatabai, Dave Detlefs +1 more 2012-07-24 $20,829,000
8201171 Adjacent data parallel and streaming operator fusion John Duffy 2012-06-12 $20,322,000
8161247 Wait loss synchronization Jan Gray, Burton Smith, Gad Sheaffer, Ali-Reza Adl-Tabatabai, Bratin Saha 2012-04-17 $18,832,000