Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Alexander Daniel Bromfield — 4 Patents

Microsoft: 4 patents #10,758 of 40,388Top 30%
Seattle, WA: #6,924 of 21,776 inventorsTop 35%
Washington: #23,275 of 76,902 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Alexander Daniel Bromfield has been granted 4 US patents while listed as an inventor at Microsoft. The first was granted in 2015 and the most recent in May 2018. Alexander Daniel Bromfield ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Alexander Daniel Bromfield in Seattle, WA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9971578 Reference attribute annotation signifying no external reference John Duffy, Jared Porter Parsons, Michael Sinz 2018-05-15 $80,339,000
9286039 Operating system support for contracts John Duffy, Jared Porter Parsons, Colin Gordon, Martin Taillefer, David Bartolomeo +1 more 2016-03-15 $43,879,000
9229959 Object graph partial immutability and isolation enforcement G. Shon Katzenberger, Jared Porter Parsons, John Duffy, Krzysztof J. Cwalina 2016-01-05 $38,756,000
9098269 System and method to ensure resource access safety with immutable object types John Duffy, Jared Porter Parsons, Michael Sinz, Krzysztof J. Cwalina 2015-08-04 $40,584,000