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

Ramkumar Mandalam — 15 Patents

GEGeron: 7 patents #24 of 147Top 20%
ABAsterias Biotherapeutics: 6 patents #2 of 34Top 6%
ABAastrom Biosciences: 1 patents #12 of 15Top 80%
Union City, CA: #118 of 1,177 inventorsTop 15%
California: #40,789 of 386,348 inventorsTop 15%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
Ramkumar Mandalam has been granted 15 US patents while listed as an inventor at Geron. The first was granted in 2004 and the most recent in October 2025. Ramkumar Mandalam ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list Ramkumar Mandalam in Union City, CA, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12441983 Suspension culture of human embryonic stem cells Yan Li, Isabelle Nadeau-Demers 2025-10-14
10676714 Suspension culture of human embryonic stem cells Yan Li, Isabelle Nadeau-Demers 2020-06-09
10059939 Screening methods for human embryonic stem cells Chunhui Xu, Joseph D. Gold, Melissa K. Carpenter 2018-08-28 $1,431,000
9587223 Protocols for making hepatocytes from embryonic stem cells Saadia Faouzi, Isabelle Nadeau, Kristina Pfendler-Bonham, Namitha Rao, Melissa K. Carpenter +2 more 2017-03-07 $2,549,000
9074181 Suspension culture of human embryonic stem cells Yan Li, Isabelle Nadeau-Demers 2015-07-07 $1,934,000
8951800 Primate pluripotent stem cell expansion without feeder cells and in the presence of FGF and matrigel or Engelbreth-Holm-Swarm tumor cell preparation Chunhui Xu, Joseph D. Gold, Melissa K. Carpenter 2015-02-10 $2,215,000
8637311 Human embryonic stem cells genetically modified to contain a nucleic acid and cultured with fibroblast growth factor Chunhui Xu, Joseph D. Gold, Melissa K. Carpenter 2014-01-28
8546139 Protocols for making hepatocytes from embryonic stem cells Saadia Faouzi, Isabelle Nadeau, Kristina Pfendler-Bonham, Namitha Rao, Melissa K. Carpenter +2 more 2013-10-01 $3,616,000
8097458 Micro-carrier culture system for rapid expansion of human embryonic stem cells Chunhui Xu, Joseph D. Gold, Melissa K. Carpenter 2012-01-17 $2,519,000
7473555 Protocols for making hepatocytes from embryonic stem cells Saadia Faouzi, Isabelle Nadeau, Kristina Pfendler-Bonham, Namitha Rao, Melissa K. Carpenter +2 more 2009-01-06 $6,519,000
7455983 Medium for growing human embryonic stem cells Chunhui Xu, Yan Li 2008-11-25 $3,990,000
7410798 Culture system for rapid expansion of human embryonic stem cells Chunhui Xu, Joseph D. Gold, Melissa K. Carpenter 2008-08-12 $4,508,000
7297539 Medium for growing human embryonic stem cells Chunhui Xu 2007-11-20 $2,595,000
7153650 Marker system for preparing and characterizing high-quality human embryonic stem cells Lawrence Stanton, Ralph Brandenberger, Joseph D. Gold, John Irving, Michael Mok 2006-12-26 $5,847,000
6835566 Human lineage committed cell composition with enhanced proliferative potential, biological effector function, or both; methods for obtaining same; and their uses Alan Smith, Douglas M. Smith 2004-12-28 $2,280,000