Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Narayan Solayappan — 33 Patents

SYSymetrix: 32 patents #5 of 73Top 7%
Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
Panasonic: 5 patents #5,184 of 21,108Top 25%
Siemens Aktiengesellschaft: 2 patents #6,658 of 22,248Top 30%
PRPrimaxx: 1 patents #4 of 10Top 40%
Colorado Springs, CO: #50 of 2,971 inventorsTop 2%
Colorado: #907 of 40,980 inventorsTop 3%
Overall (All Time): #105,480 of 4,157,543Top 3%
33 Patents All Time
Narayan Solayappan has been granted 33 US patents while listed as an inventor at Symetrix. The first was granted in 1998 and the most recent in December 2008. Narayan Solayappan ranks #105,480 of 4,157,543 US inventors in our database (top 2.5%). Patent records list Narayan Solayappan in Colorado Springs, CO, US.

Patents per Year

Patents granted per year, 1998 to 2008Bar chart with a peak of 6 patents in 2004.peak 61998: 4 patents19981999: 3 patents2000: 3 patents20002001: 5 patents2002: 2 patents20022003: 5 patents2004: 6 patents20042005: 1 patents2006: 2 patents20062007: 1 patents2008: 1 patents2008

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7459318 Ferroelectric and high dielectric constant integrated circuit capacitors with three-dimensional orientation for high-density memories, and method of making the same Carlos A. Paz de Araujo, Larry D. McMillan, Vikram Joshi 2008-12-02 $253,000
7187079 Stacked memory cell having diffusion barriers Vikram Joshi, Carlos A. Paz de Araujo, Larry D. McMillan 2007-03-06 $311,000
7075134 Ferroelectric and high dielectric constant integrated circuit capacitors with three-dimensional orientation for high-density memories, and method of making the same Carlos A. Paz de Araujo, Larry D. McMillan, Vikram Joshi 2006-07-11 $401,000
7064374 Barrier layers for protecting metal oxides from hydrogen degradation Jolanta Bozena Celinska, Vikram Joshi, Carlos A. Paz de Araujo, Larry D. McMillan 2006-06-20 $483,000
6867452 Interlayer oxide containing thin films for high dielectric constant application of the formula AB2O6 or AB2O7 Shinichiro Hayashi, Vikram Joshi, Joseph D. Cuchiaro, Carlos A. Paz de Araujo 2005-03-15 $272,000
6831313 Ferroelectric composite material, method of making same and memory utilizing same Kiyoshi Uchiyama, Carlos A. Paz de Araujo, Vikram Joshi, Jolanta Bozena Celinska, Larry D. McMillan 2004-12-14 $190,000
6815223 Low thermal budget fabrication of ferroelectric memory using RTP Jolanta Bozena Celinska, Vikram Joshi, Myoungho Lim, Larry D. McMillan, Carlos A. Paz de Araujo 2004-11-09
6787181 Chemical vapor deposition method of making layered superlattice materials using trimethylbismuth Kiyoshi Uchiyama, Carlos A. Paz de Araujo 2004-09-07 $192,000
6781184 Barrier layers for protecting metal oxides from hydrogen degradation Jolanta Bozena Celinska, Vikram Joshi, Carlos A. Paz de Araujo, Larry D. McMillan 2004-08-24
6743643 Stacked memory cell having diffusion barriers Vikram Joshi, Carlos A. Paz de Araujo, Larry D. McMillan 2004-06-01
6706585 Chemical vapor deposition process for fabricating layered superlattice materials Kiyoshi Uchiyama, Carlos A. Paz de Araujo 2004-03-16 $278,000
6582972 Low temperature oxidizing method of making a layered superlattice material Vikram Joshi, Jolanta Bozena Celinska, Larry D. McMillan, Carlos A. Paz de Araujo, Koji Arita 2003-06-24 $195,000
6562678 Chemical vapor deposition process for fabricating layered superlattice materials Kiyoshi Uchiyama, Carlos A. Paz de Araujo 2003-05-13 $160,000
6559469 Ferroelectric and high dielectric constant transistors Carlos A. Paz de Araujo, Larry D. McMillan, Vikram Joshi, Joseph D. Cuchiaro 2003-05-06
6541279 Method for forming an integrated circuit Shinichiro Hayashi, Vikram Joshi, Joseph D. Cuchiaro, Carlos A. Paz de Araujo 2003-04-01 $176,000
6511718 Method and apparatus for fabrication of thin films by chemical vapor deposition Carlos A. Paz de Araujo, Larry D. McMillan, Jeffrey W. Bacon 2003-01-28
6495878 Interlayer oxide containing thin films for high dielectric constant application Shinichiro Hayashi, Vikram Joshi, Joseph D. Cuchiaro, Carlos A. Paz de Araujo 2002-12-17 $228,000
6437380 Ferroelectric device with bismuth tantalate capping layer and method of making same Myoungho Lim, Vikram Joshi, Larry D. McMillan, Carlos A. Paz de Araujo 2002-08-20
6326315 Low temperature rapid ramping anneal method for fabricating layered superlattice materials and making electronic devices including same Kiyoshi Uchiyama, Koji Arita, Carlos A. Paz de Araujo 2001-12-04 $165,000
6322849 Recovery of electronic properties in hydrogen-damaged ferroelectrics by low-temperature annealing in an inert gas Vikram Joshi, Walter Hartner, Gunther Schindler 2001-11-27
6258733 Method and apparatus for misted liquid source deposition of thin film with reduced mist particle size Robert W. Grant, Larry D. McMillan, Carlos A. Paz de Araujo 2001-07-10
6245580 Low temperature process for fabricating layered superlattice materials and making electronic devices including same Vikram Joshi, Carlos A. Paz de Araujo 2001-06-12
6171934 Recovery of electronic properties in process-damaged ferroelectrics by voltage-cycling Vikram Joshi, Walter Hartner, Gunther Schindler 2001-01-09
6116184 Method and apparatus for misted liquid source deposition of thin film with reduced mist particle size Robert W. Grant, Larry D. McMillan, Carlos A. Paz de Araujo 2000-09-12
6110531 Method and apparatus for preparing integrated circuit thin films by chemical vapor deposition Carlos A. Paz de Araujo, Larry D. McMillan, Jeffrey W. Bacon 2000-08-29