Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
KS

Kalpendu Shastri

Cisco: 26 patents #406 of 13,007Top 4%
SISioptical: 20 patents #5 of 15Top 35%
LILightwire: 6 patents #4 of 19Top 25%
ATAT&T: 3 patents #5,550 of 18,772Top 30%
Orefield, PA: #3 of 99 inventorsTop 4%
Pennsylvania: #405 of 74,527 inventorsTop 1%
Overall (All Time): #34,304 of 4,157,543Top 1%
64 Patents All Time

Issued Patents All Time

Showing 51–64 of 64 patents

Patent #TitleCo-InventorsDate
7058261 Interfacing multiple wavelength sources to thin optical waveguides utilizing evanescent coupling Margaret Ghiron, Prakash Gothoskar, Robert Keith Montgomery, Vipulkumar Patel, Soham Pathak +1 more 2006-06-06
7020364 Permanent light coupling arrangement and method for use with thin silicon optical waveguides Margaret Ghiron, Prakash Gothoskar, Robert Keith Montgomery, Vipulkumar Patel, Soham Pathak +1 more 2006-03-28
7013067 Silicon nanotaper couplers and mode-matching devices Margaret Ghiron, Prakash Gothoskar, Robert Keith Montgomery, Vipulkumar Patel, Soham Pathak +1 more 2006-03-14
7003196 External grating structures for interfacing wavelength-division-multiplexed optical sources with thin optical waveguides Margaret Ghiron, Prakash Gothoskar, Robert Keith Montgomery, Vipulkumar Patel, Soham Pathak +1 more 2006-02-21
7000207 Method of using a Manhattan layout to realize non-Manhattan shaped optical structures Prakash Gothoskar, Margaret Ghiron, Vipulkumar Patel, Robert Keith Montgomery, Soham Pathak +1 more 2006-02-14
6980720 Mode transformation and loss reduction in silicon waveguide structures utilizing tapered transition regions Prakash Gothoskar, Margaret Ghiron, Vipulkumar Patel, Robert Keith Montgomery, Soham Pathak +1 more 2005-12-27
6968110 CMOS-compatible integration of silicon-based optical devices with electronic devices Vipulkumar Patel, Margaret Ghiron, Prakash Gothoskar, Robert Keith Montgomery, Soham Pathak +1 more 2005-11-22
6934444 Beam shaping and practical methods of reducing loss associated with mating external sources and optics to thin silicon waveguides Margaret Ghiron, Prakash Gothoskar, Robert Keith Montgomery, Vipulkumar Patel, Soham Pathak +1 more 2005-08-23
6917730 Arrangements for reducing wavelength sensitivity in prism-coupled SOI-based optical systems Margaret Ghiron, Prakash Gothoskar, Robert Keith Montgomery, Vipulkumar Patel, Soham Pathak +1 more 2005-07-12
6897498 Polycrystalline germanium-based waveguide detector integrated on a thin silicon-on-insulator (SOI) platform Prakash Gothoskar, Margaret Ghiron, Vipulkumar Patel, Robert Keith Montgomery, Soham Pathak +1 more 2005-05-24
6845198 High-speed silicon-based electro-optic modulator Robert Keith Montgomery, Margaret Ghiron, Prakash Gothoskar, Vipulkumar Patel, Soham Pathak +1 more 2005-01-18
5844928 Laser driver with temperature sensor on an integrated circuit David A. Snyder 1998-12-01
5757872 Clock recovery circuit Mihai Banu, Alfred E. Dunlop, Wilhelm Fischer, Thaddeus John Gabara 1998-05-26
5043992 Laser driver with temperature compensation James J. Royer 1991-08-27