Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Simon D. McMahon — 14 Patents

IBM: 14 patents #8,031 of 70,183Top 15%
Gold Coast, AU: #11 of 365 inventorsTop 4%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Simon D. McMahon has been granted 14 US patents while listed as an inventor at IBM. The first was granted in 2012 and the most recent in May 2024. Simon D. McMahon ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Simon D. McMahon in Gold Coast, AU.

Patents per Year

Patents granted per year, 2012 to 2024Bar chart with a peak of 5 patents in 2023.peak 52012: 1 patents20122013: 1 patents20132020: 1 patents20202021: 2 patents20212022: 3 patents20222023: 5 patents20232024: 1 patents2024

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11985239 Forward secrecy in transport layer security (TLS) using ephemeral keys Michael W. Gray, Narayana Aditya Madineni, Matthew Green, Leigh S. McLean, Stephen J. McKenzie +2 more 2024-05-14 $15,691,000
11757659 Post-quantum certificate binding Michael W. Gray, Narayana Aditya Madineni, Matthew Green, Peter T. Waltenberg 2023-09-12 $5,734,000
11716206 Certificate based security using post quantum cryptography Michael W. Gray, Narayana Aditya Madineni, Matthew Green, Peter T. Waltenberg 2023-08-01 $14,809,000
11683182 Message embedment in random values Michael W. Gray, Narayana Aditya Madineni, Matthew Green, Stephen J. McKenzie, Michael James Thomas 2023-06-20 $4,843,000
11647014 Identity authentication based on data from Internet of Things devices Stephen J. McKenzie, Narayana Aditya Madineni, Pranab Agarwal 2023-05-09 $3,203,000
11632246 Hybrid key derivation to secure data Michael W. Gray, Narayana Aditya Madineni, Matthew Green, Peter T. Waltenberg 2023-04-18 $12,037,000
11463242 Padding oracle elimination in RSA encryption Michael W. Gray, Narayana Aditya Madineni, Matthew Green, Leigh S. McLean 2022-10-04 $9,590,000
11405187 Extended-life asymmetric cryptographic key scheme Narayana Aditya Madineni, Peter T. Waltenberg 2022-08-02 $9,617,000
11374975 TLS integration of post quantum cryptographic algorithms Michael W. Gray, Narayana Aditya Madineni, Matthew Green, Leigh S. McLean, Peter T. Waltenberg 2022-06-28 $8,334,000
11206135 Forward secrecy in Transport Layer Security (TLS) using ephemeral keys Michael W. Gray, Narayana Aditya Madineni, Matthew Green, Leigh S. McLean, Stephen J. McKenzie +2 more 2021-12-21 $5,237,000
11153299 Secure data transport using trusted identities Michael W. Gray, Narayana Aditya Madineni, Leigh S. McLean, Luvita Burgess, Stephen J. McKenzie +2 more 2021-10-19 $2,168,000
10812267 Secure password lock and recovery Narayana Aditya Madineni, Michael W. Gray, Leigh S. McLean, Matthew Green, Luvita Burgess +2 more 2020-10-20 $3,651,000
8412852 Guaranteeing a single copy of a shared assembly per process Michael W. Gray, Alexander John Hennekam, Peter Horner, Michael James Thomas, Peter T. Waltenberg 2013-04-02 $8,535,000
8291401 Processing symbols associated with shared assemblies Michael W. Gray, Alexander John Hennekam, Peter Horner, Michael James Thomas, Peter T. Waltenberg 2012-10-16 $3,795,000