Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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S. Narayanan — 5 Patents

RARamar: 3 patents #2 of 4Top 50%
SEStone & Webster Engineering: 2 patents #23 of 74Top 35%
Westwood, MA: #74 of 265 inventorsTop 30%
Massachusetts: #23,696 of 88,656 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
S. Narayanan has been granted 5 US patents while listed as an inventor at Ramar. The first was granted in 1988 and the most recent in February 1999. S. Narayanan ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list S. Narayanan in Westwood, MA, US.

Patents per Year

Patents granted per year, 1988 to 1999Bar chart with a peak of 2 patents in 1998.peak 21988: 1 patents19881990: 1 patents19901998: 2 patents19981999: 1 patents1999

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5875276 Guided wave device and method of fabrication thereof Amaresh Mahapatra 1999-02-23
5834055 Guided wave device and method of fabrication thereof Amaresh Mahapatra 1998-11-10
5749132 Method of fabrication an optical waveguide Amaresh Mahapatra 1998-05-12
4906442 Process and apparatus for the production of olefins from both heavy and light hydrocarbons Axel Johnson, Herman N. Woebcke 1990-03-06 $2,513,000
4765883 Process for the production of aromatics benzene, toluene, xylene (BTX) from heavy hydrocarbons Axel Johnson, Herman H. Woebcke 1988-08-23 $1,867,000