Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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James D. Strom — 69 Patents

IBM: 69 patents #1,079 of 70,183Top 2%
Rochester, MN: #65 of 3,042 inventorsTop 3%
Minnesota: #474 of 52,454 inventorsTop 1%
Overall (All Time): #29,979 of 4,157,543Top 1%
69 Patents All Time
James D. Strom has been granted 69 US patents while listed as an inventor at IBM. The first was granted in 1992 and the most recent in October 2025. James D. Strom ranks #29,979 of 4,157,543 US inventors in our database (top 0.72%). Patent records list James D. Strom in Rochester, MN, US.

Patents per Year

Patents granted per year, 1992 to 2025Bar chart with a peak of 6 patents in 2018.peak 61992: 1 patents19921998: 4 patents1999: 1 patents2000: 2 patents20002001: 3 patents2002: 1 patents2003: 2 patents20032004: 3 patents2005: 1 patents2006: 3 patents20062007: 1 patents2008: 1 patents2009: 2 patents20092010: 2 patents2012: 2 patents2013: 3 patents20132014: 3 patents2015: 4 patents2016: 5 patents20162017: 2 patents2018: 6 patents2019: 3 patents20192020: 3 patents2021: 2 patents2022: 3 patents20222023: 3 patents2025: 3 patents2025

Issued Patents All Time

Showing 1–25 of 69 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12438547 Phase-locked loop update cancellation John Borkenhagen, Christopher W. Steffen, Grant P. Kesselring 2025-10-07
12308847 Dual loop charge pump for enhanced reliability and power consumption John Borkenhagen, Ann Wu, Rashmi R. Bindu 2025-05-20
12218120 Device mismatch mitigation for medium range and beyond distances Dureseti Chidambarrao, Matthew S. Angyal, Noah Zamdmer, Varadarajan Vidya, Grant P. Kesselring +1 more 2025-02-04
11775002 Redundant clock switch Matthew James Paschal, Daniel M. Dreps, Glen A. Wiedemeier, Bruce George Rudolph 2023-10-03 $6,984,000
11750180 High frequency AC coupled self-biased divider Grant P. Kesselring, Andrew D. Davies, Ann Wu 2023-09-05 $6,576,000
11558057 Phase locked loop pulse truncation John Borkenhagen, Grant P. Kesselring, Christopher W. Steffen 2023-01-17 $4,393,000
11527953 Higher yielding improved matching reference circuit especially applicable for high speed mixed signal applications and phase locked loops and charge pumps John Borkenhagen, Ann Wu, Erik Unterborn, Grant P. Kesselring 2022-12-13 $8,590,000
11496094 Voltage-controlled oscillator with centertap bias Herschel A. Ainspan, Andrew D. Davies, John Borkenhagen 2022-11-08 $10,347,000
11303285 Multi-mode design and operation for transistor mismatch immunity Erik Unterborn, Michael A. Sperling, Dureseti Chidambarrao, Grant P. Kesselring 2022-04-12 $4,292,000
10969422 Guard ring monitor Grant P. Kesselring, Ann Wu 2021-04-06 $3,234,000
10897225 Oscillator failure detection circuit Matthew James Paschal, Bruce George Rudolph, Daniel M. Dreps 2021-01-19 $4,840,000
10804905 Using a burn-in operational amplifier for a phased locked loop regulator Grant P. Kesselring, David M. Friend 2020-10-13 $4,674,000
10778146 Integrated circuit voltage-controlled oscillator with late-stage fabrication tuning Grant P. Kesselring, Scott Trcka, Ann Wu 2020-09-15 $3,481,000
10644709 Efficient differential charge pump with sense and common mode control Grant P. Kesselring, Ann Wu, Scott Trcka 2020-05-05 $3,712,000
10361707 Efficient differential charge pump with sense and common mode control Grant P. Kesselring, Ann Wu, Scott Trcka 2019-07-23 $2,519,000
10326450 Implementing cascade level shifter for analog voltage Andrew D. Davies, David M. Friend, Grant P. Kesselring 2019-06-18 $3,033,000
10250267 Differential phase-frequency detector David M. Friend, Grant P. Kesselring, Alan P. Wagstaff 2019-04-02 $2,364,000
10116260 VCO selection and amplitude management using center tap inductor Andrew D. Davies, David M. Friend, Christopher W. Steffen 2018-10-30 $2,799,000
10088519 Electromigration monitor David M. Friend, Grant P. Kesselring, Eric John Lukes 2018-10-02 $3,730,000
9929722 Wire capacitor for transmitting AC signals David M. Friend, Grant P. Kesselring, Christopher W. Steffen 2018-03-27 $2,459,000
9923565 Differential phase-frequency detector David M. Friend, Grant P. Kesselring, Alan P. Wagstaff 2018-03-20 $2,525,000
9882552 Low power amplifier David M. Friend, Grant P. Kesselring, Michael A. Sperling 2018-01-30 $2,622,000
9871527 Phase locked loop with sense amplifier circuitry David M. Friend, Grant P. Kesselring, Michael A. Sperling 2018-01-16 $4,196,000
9571069 Implementing clock receiver with low jitter and enhanced duty cycle Andrew D. Davies, Grant P. Kesselring, Christopher W. Steffen 2017-02-14 $1,939,000
9571109 Voltage controlled oscillator runaway prevention David M. Friend, Alan P. Wagstaff 2017-02-14 $1,939,000