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

Ravikumar Ramachandran — 112 Patents

IBM: 95 patents #621 of 70,183Top 1%
Infineon Technologies Ag: 18 patents #453 of 7,486Top 7%
Globalfoundries: 11 patents #330 of 4,424Top 8%
Siemens Aktiengesellschaft: 7 patents #1,726 of 22,248Top 8%
FSFreeescale Semiconductor: 1 patents #2,021 of 3,767Top 55%
Kabushiki Kaisha Toshiba: 1 patents #13,641 of 21,451Top 65%
Pleasantville, NY: #4 of 229 inventorsTop 2%
New York: #443 of 115,490 inventorsTop 1%
Overall (All Time): #11,519 of 4,157,543Top 1%
112 Patents All Time
Ravikumar Ramachandran has been granted 112 US patents while listed as an inventor at IBM. The first was granted in 1998 and the most recent in November 2025. Ravikumar Ramachandran ranks #11,519 of 4,157,543 US inventors in our database (top 0.28%). Patent records list Ravikumar Ramachandran in Pleasantville, NY, US.

Patents per Year

Patents granted per year, 1998 to 2025Bar chart with a peak of 14 patents in 2016.peak 141998: 1 patents19981999: 3 patents2000: 3 patents2001: 2 patents20012002: 4 patents2003: 3 patents2004: 3 patents20042005: 6 patents2006: 3 patents2007: 2 patents20072008: 3 patents2009: 3 patents2010: 3 patents20102011: 1 patents2012: 2 patents2013: 5 patents20132014: 5 patents2015: 13 patents2016: 14 patents20162017: 7 patents2018: 5 patents2019: 9 patents20192020: 3 patents2021: 1 patents2024: 3 patents20242025: 5 patents2025

Issued Patents All Time

Showing 1–25 of 112 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12484265 Subtractive source drain contact for stacked devices Heng Wu, Junli Wang, Ruinan Xie, Albert Young, Albert M. Chu +1 more 2025-11-25
12424591 Method and structure of forming independent contact for staggered CFET Ruilong Xie, Albert M. Chu, Albert M. Young, Brent A. Anderson, Junli Wang 2025-09-23
12412829 Method and structure of forming sidewall contact for stacked FET Ruilong Xie, Julien Frougier, Su Chen Fan, Oleg Gluschenkov 2025-09-09
12341099 Semiconductor backside transistor integration with backside power delivery network Ruilong Xie, Daniel C. Edelstein, Rajiv V. Joshi, Eric R. Miller 2025-06-24
12328859 Stacked FET SRAM Ruilong Xie, Carl Radens, Albert M. Chu, Brent A. Anderson, Junli Wang +1 more 2025-06-10
11961895 Gate stacks with multiple high-κ dielectric layers Ruqiang Bao, Barry P. Linder, Shahab Siddiqui, Elnatan Mataev 2024-04-16 $17,011,000
11935929 High aspect ratio shared contacts Ruilong Xie, Julien Frougier, Su Chen Fan, Nicolas Loubet 2024-03-19 $12,891,000
11895818 Stacked FET SRAM Ruilong Xie, Carl Radens, Junli Wang, Julien Frougier, Dechao Guo 2024-02-06 $12,408,000
11139299 FinFET based ZRAM with convex channel region Reinaldo Vega 2021-10-05 $5,888,000
10832971 Fabricating tapered semiconductor devices Rajasekhar Venigalla, Albert M. Chu, Alan C. Thomas, Kafai Lai 2020-11-10 $848,000
10693005 Reliable gate contacts over active areas Emre Alptekin, Albert M. Chu, Eric Eastman, Myung-Hee Na 2020-06-23 $2,380,000
10573646 Preserving channel strain in fin cuts Andrew M. Greene, Dechao Guo, Rajasekhar Venigalla 2020-02-25 $1,919,000
10424574 Standard cell architecture with at least one gate contact over an active area Albert M. Chu, Myung-Hee Na 2019-09-24 $3,094,000
10424576 Standard cell architecture with at least one gate contact over an active area Albert M. Chu, Myung-Hee Na 2019-09-24 $3,094,000
10403628 Finfet based ZRAM with convex channel region Reinaldo Vega 2019-09-03 $15,611,000
10381480 Reliable gate contacts over active areas Emre Alptekin, Albert M. Chu, Eric Eastman, Myung-Hee Na 2019-08-13 $1,909,000
10256238 Preserving channel strain in fin cuts Andrew M. Greene, Dechao Guo, Rajasekhar Venigalla 2019-04-09 $2,400,000
10242980 Semiconductor fin isolation by a well trapping fin portion Henry K. Utomo, Kangguo Cheng, Ramachandra Divakaruni, Huiling Shang, Reinaldo Vega 2019-03-26 $2,148,000
10242918 Shallow trench isolation structures and contact patterning Andrew M. Greene, Rajasekhar Venigalla 2019-03-26 $2,148,000
10177154 Structure and method to prevent EPI short between trenches in FinFET eDRAM Michael V. Aquilino, Veeraraghavan S. Basker, Kangguo Cheng, Gregory Costrini, Ali Khakifirooz +5 more 2019-01-08 $2,287,000
10177039 Shallow trench isolation structures and contact patterning Andrew M. Greene, Rajasekhar Venigalla 2019-01-08 $2,287,000
10128239 Preserving channel strain in fin cuts Andrew M. Greene, Dechao Guo, Rajasekhar Venigalla 2018-11-13 $2,931,000
10083865 Partial spacer for increasing self aligned contact process margins Emre Alptekin, Viraj Y. Sardesai, Reinaldo Vega 2018-09-25 $2,527,000
10074562 Self aligned contact structure Rosa A. Orozco-Teran, John A. Fitzsimmons, Russell H. Arndt, David L. Rath 2018-09-11 $4,894,000
9985104 Contact first replacement metal gate Emre Alptekin, Viraj Y. Sardesai 2018-05-29 $2,015,000