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

Injo Ok — 150 Patents

IBM: 139 patents #334 of 70,183Top 1%
ETElpis Technologies: 4 patents #5 of 121Top 5%
Globalfoundries: 4 patents #817 of 4,424Top 20%
TETessera: 3 patents #129 of 271Top 50%
ASAdeia Semiconductor Solutions: 1 patents #22 of 57Top 40%
Loudonville, NY: #2 of 94 inventorsTop 3%
New York: #254 of 115,490 inventorsTop 1%
Overall (All Time): #6,240 of 4,157,543Top 1%
150 Patents All Time
Injo Ok has been granted 150 US patents while listed as an inventor at IBM. The first was granted in 2012 and the most recent in August 2025. Injo Ok ranks #6,240 of 4,157,543 US inventors in our database (top 0.15%). Patent records list Injo Ok in Loudonville, NY, US.

Patents per Year

Patents granted per year, 2012 to 2025Bar chart with a peak of 34 patents in 2020.peak 342012: 1 patents20122016: 12 patents2017: 14 patents20172018: 15 patents2019: 22 patents20192020: 34 patents2021: 17 patents20212022: 11 patents2023: 7 patents20232024: 9 patents2025: 8 patents2025

Issued Patents All Time

Showing 1–25 of 150 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12402544 Antenna assisted ReRAM formation Youngseok Kim, Soon-Cheon Seo, Alexander Reznicek 2025-08-26
12329045 Phase change memory programming current leakage reduction Soon-Cheon Seo, Alexander Reznicek, Youngseok Kim, Timothy Mathew Philip 2025-06-10
12324365 Proximity heater to lower RRAM forming voltage Timothy Mathew Philip, Jin-Ping Han, Ching-Tzu Chen, Kevin W. Brew 2025-06-03
12317764 Uniform voltage drop in arrays of memory devices Soon-Cheon Seo, Alexander Reznicek, Youngseok Kim 2025-05-27
12310263 Phase change memory gaps Soon-Cheon Seo, Alexander Reznicek, Oleg Gluschenkov 2025-05-20
12310264 Phase change memory using multiple phase change layers and multiple heat conductors Balasubramanian Pranatharthiharan, Kevin W. Brew, Wei Wang 2025-05-20
12250889 Phase change memory cell with double active volume Timothy Mathew Philip, Jin-Ping Han, Kevin W. Brew, Ching-Tzu Chen 2025-03-11
12237368 Semiconductor structures including middle-of-line (MOL) capacitance reduction for self-aligned contact in gate stack Balasubramanian Pranatharthiharan, Soon-Cheon Seo, Charan V. Surisetty 2025-02-25
12183826 Vertical field effect transistor with low-resistance bottom source-drain contact Choonghyun Lee, Soon-Cheon Seo, Alexander Reznicek 2024-12-31 $22,533,000
12150393 Heater for phase change material memory cell Victor Chan, Jin-Ping Han, Samuel S. Choi 2024-11-19 $17,641,000
12144270 Back end of line embedded RRAM structure with grain growth enhancement Oleg Gluschenkov, Alexander Reznicek, Soon-Cheon Seo 2024-11-12 $15,831,000
12144271 Back end of line embedded RRAM structure with low forming voltage Oleg Gluschenkov, Alexander Reznicek, Youngseok Kim, Soon-Cheon Seo 2024-11-12 $15,831,000
12010930 Wrap-around projection liner for AI device Hsueh-Chung Chen, Mary Claire Silvestre, Yann Mignot 2024-06-11 $12,881,000
11980111 Confined bridge cell phase change memory Andrew H. Simon, Kevin W. Brew, Muthumanickam Sankarapandian, Steven Michael McDermott, Nicole Saulnier 2024-05-07 $15,644,000
11957069 Contact resistance of a metal liner in a phase change memory cell Oleg Gluschenkov, Alexander Reznicek, Soon-Cheon Seo 2024-04-09 $10,928,000
11930724 Phase change memory cell spacer Nicole Saulnier, Muthumanickam Sankarapandian, Andrew H. Simon, Steven Michael McDermott, Iqbal Rashid Saraf 2024-03-12 $11,845,000
11889773 Multi-layer phase change memory device Kevin W. Brew, Jin-Ping Han, Timothy Mathew Philip, Matthew J. BrightSky, Nicole Saulnier 2024-01-30 $13,656,000
11800817 Phase change memory cell galvanic corrosion prevention Nicole Saulnier, Kevin W. Brew, Steven Michael McDermott, Lawrence A. Clevenger, Hari Prasad Amanapu +2 more 2023-10-24 $9,282,000
11737379 Antenna assisted ReRAM formation Youngseok Kim, Soon-Cheon Seo, Alexander Reznicek 2023-08-22 $5,113,000
11711989 Phase change memory Alexander Reznicek, Soon-Cheon Seo, Youngseok Kim, Timothy Mathew Philip 2023-07-25 $11,323,000
11659780 Phase change memory structure with efficient heating system Alexander Reznicek, Choonghyun Lee, Soon-Cheon Seo 2023-05-23 $8,730,000
11621394 Multi-layer phase change memory device Kevin W. Brew, Jin-Ping Han, Timothy Mathew Philip, Matthew J. BrightSky, Nicole Saulnier 2023-04-04 $5,091,000
11615842 Mixed conducting volatile memory element for accelerated writing of nonvolatile memristive device Kevin W. Brew, Wei Wang, Lan Yu, Youngseok Kim 2023-03-28 $13,323,000
11588103 Resistive memory array Youngseok Kim, Choonghyun Lee, Timothy Mathew Philip, Soon-Cheon Seo, Alexander Reznicek 2023-02-21 $5,683,000
11522045 Semiconductor structures including middle-of-line (MOL) capacitance reduction for self-aligned contact in gate stack Balasubramanian Pranatharthiharan, Soon-Cheon Seo, Charan V. V. S. Surisetty 2022-12-06 $10,320,000