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

Thomas L. Koch — 44 Patents

ATAT&T: 20 patents #817 of 18,772Top 5%
UAUniversity Of Arizona: 6 patents #51 of 1,318Top 4%
SDSdl: 5 patents #23 of 128Top 20%
American Telephone And Telegraph: 5 patents #5 of 699Top 1%
JUJds Uniphase: 2 patents #250 of 940Top 30%
ASAgere Systems: 2 patents #639 of 1,849Top 35%
SCSanta Barbara Research Center: 1 patents #82 of 173Top 50%
CUColumbia University: 1 patents #1,151 of 2,492Top 50%
URUniversity Of Rochester: 1 patents #496 of 1,162Top 45%
Stanford University: 1 patents #2,423 of 5,197Top 50%
SFSUNY Research Foundation: 1 patents #985 of 1,165Top 85%
APAnalog Photonics: 1 patents #12 of 20Top 60%
BLBell Telephone Laboratories: 1 patents #567 of 1,445Top 40%
Caltech: 1 patents #2,143 of 4,321Top 50%
CUCornell University: 1 patents #786 of 1,984Top 40%
LULehigh University: 1 patents #88 of 228Top 40%
MIT: 1 patents #4,386 of 9,367Top 50%
Tucson, AZ: #129 of 6,004 inventorsTop 3%
Arizona: #548 of 32,909 inventorsTop 2%
Overall (All Time): #66,838 of 4,157,543Top 2%
44 Patents All Time
Thomas L. Koch has been granted 44 US patents while listed as an inventor at AT&T. The first was granted in 1987 and the most recent in April 2025. Thomas L. Koch ranks #66,838 of 4,157,543 US inventors in our database (top 1.6%). Patent records list Thomas L. Koch in Tucson, AZ, US.

Issued Patents All Time

Showing 1–25 of 44 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12280556 Assembly of flexible optical waveguides and photonic chips for optical interconnection packaging Linan Jiang, Stanley Pau, Robert A. Norwood 2025-04-22
12282190 Chip-to-chip optical interconnection using high refractive index couplers Erfan M. Fard, Roland Himmelhuber, Linan Jiang, Stanley Pau, Robert A. Norwood +1 more 2025-04-22
11454759 High-throughput manufacturing of photonic integrated circuit (PIC) waveguides using multiple exposures Linan Jiang, Stanley Pau, Robert A. Norwood 2022-09-27
11402752 Fabrication of optical interconnect structures for a photonic integrated circuit Robert A. Norwood, Stanley Pau, Nasser Peyghambarian 2022-08-02
11327225 Optical printed circuit board with polymer array stitch Robert A. Norwood, Stanley Pau, Nasser Peyghambarian 2022-05-10
10976491 Photonics interposer optoelectronics Douglas D. Coolbaugh, Michael Robert Watts, Michal Lipson, Keren Bergman, Jeremiah Hebding +2 more 2021-04-13
8619358 Electrically pumped extrinsic semiconductor optical amplifier with slot waveguide Lionel C. Kimerling, Harry A. Atwater, Mark L. Brongersma, Luca Dal Negro, Philippe Fauchet +3 more 2013-12-31
7563628 Fabrication of optical waveguide devices Robert M. Pafchek, Mark A. Webster 2009-07-21
6490044 Optimized interferometrically modulated array source Donald R. Scifres 2002-12-03 $24,981,000
6486999 Using crystalline materials to control the thermo-optic behavior of an optical path David Alan Ackerman, Richard B. Bylsma, Robert L. Hartman, Glen Robert Kowach, Malcolm E. Lines +1 more 2002-11-26
6392751 Optimized interferometrically modulated array source Donald R. Scifres 2002-05-21 $35,030,000
6359915 Wavelength-stabilized Bragg laser Xing Pan 2002-03-19 $4,380,000
6301272 Resonant pumped short cavity fiber laser with optical feedback stabilization Robert G. Waarts 2001-10-09
6295304 Resonant pumped short cavity fiber laser with multiple optical resonators Stephen G. Grubb 2001-09-25
6186937 Method and device for obtaining a desired phase of optical characteristic of a fabry-perot etalon David Alan Ackerman 2001-02-13 $25,854,000
6069732 Semiconductor interferometric optical wavelength conversion device Xing Pan 2000-05-30 $108,778,000
6041070 Resonant pumped short cavity fiber laser Robert G. Waarts 2000-03-21 $159,315,000
5991060 Automatic power control for a wavelength selective EML module Daniel Fishman, Uziel Koren 1999-11-23 $51,392,000
5870417 Thermal compensators for waveguide DBR laser sources Jean-Marc Verdiell, Robert J. Lang, Mehrdad Ziari 1999-02-09 $9,447,000
5870512 Optimized interferometrically modulated array source Donald R. Scifres 1999-02-09 $9,447,000
5745270 Method and apparatus for monitoring and correcting individual wavelength channel parameters in a multi-channel wavelength division multiplexer system 1998-04-28 $18,441,000
5663824 Optical modulators as monolithically integrated optical isolators Fumio Koyama, Kang-Yih Liou 1997-09-02 $28,921,000
5413884 Grating fabrication using electron beam lithography Frederick W. Ostermayer, Jr., Donald M. Tennant, Jean-Marc Verdiell 1995-05-09 $285,249,000
5394489 Wavelength division multiplexed optical communication transmitters 1995-02-28
5299212 Article comprising a wavelength-stabilized semiconductor laser Sheryl Leigh Woodward 1994-03-29