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USPTO Patent Rankings Data through Dec 31, 2025
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Christopher Doerr — 259 Patents

ATAT&T: 88 patents #102 of 18,772Top 1%
ACAcacia Communications: 86 patents #1 of 55Top 2%
Alcatel Lucent: 51 patents #7 of 4,169Top 1%
ASAloe Semiconductor: 7 patents #1 of 2Top 50%
UNUnknown: 6 patents #2,010 of 83,584Top 3%
AGAgere Systems Optoelectronics Guardian: 5 patents #4 of 115Top 4%
AGAgere Systems Guardian: 3 patents #85 of 810Top 15%
UOUniversity Of Oregon: 1 patents #40 of 113Top 40%
THTriquint Technology Holding: 1 patents #47 of 141Top 35%
Cisco: 1 patents #7,948 of 13,007Top 65%
ATAcacia Technology: 1 patents #1 of 8Top 15%
ASAgere Systems: 1 patents #984 of 1,849Top 55%
GEGemfire: 1 patents #22 of 36Top 65%
MTMassachusetts Inst. Of Technology: 1 patents #5 of 17Top 30%
MIT: 1 patents #4,386 of 9,367Top 50%
DLDraper Laboratory: 1 patents #495 of 921Top 55%
Irvine, CA: #4 of 6,241 inventorsTop 1%
California: #327 of 386,348 inventorsTop 1%
Overall (All Time): #1,838 of 4,157,543Top 1%
259 Patents All Time
Christopher Doerr has been granted 259 US patents while listed as an inventor at AT&T. The first was granted in 1995 and the most recent in November 2025. Christopher Doerr ranks #1,838 of 4,157,543 US inventors in our database (top 0.04%). Patent records list Christopher Doerr in Irvine, CA, US.

Issued Patents All Time

Showing 1–25 of 259 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12463730 Wavelength locking Graeme Pendock, Hongbin Zhang, Tom Williams 2025-11-04
12442992 Wavelength division multiplexer Long Chen, Li Nien Chen 2025-10-14
12393091 Transverse-magnetic polarization silicon-photonic modulator — 2025-08-19
12308602 Tunable laser Xue Huang 2025-05-20
12308601 Wavelength locker Long Chen 2025-05-20
12308609 Integration of optical gain subassembly with silicon photonics — 2025-05-20
12222627 High-gain differential electro-optic modulator — 2025-02-11
12184333 Optical multiple-input-multiple-output (MIMO) demultiplexers — 2024-12-31
12181583 Lidar sensor with orthogonal arrays Long Chen 2024-12-31
12164150 Optical waveguide passivation for moisture protection Li Chen, Long Chen 2024-12-10 $54,133,000
12147073 Co-packaging photonic integrated circuits and application specific integrated circuits Eric Swanson, Diedrik Vermeulen, Saeid Azemati, Jon Stahl 2024-11-19
12119881 Optical multiple-input-multiple-output (MIMO) receiver using stokes vector measurements Ying Zhao 2024-10-15
12041397 Switch Benny Mikkelsen, Ian Juso Dedic, John LoMedico, Song Jiang 2024-07-16
12007506 Method, system, and apparatus for a LiDAR sensor with varying grating pitch — 2024-06-11
12001118 Transverse-magnetic polarization silicon-photonic modulator — 2024-06-04
11973304 Tunable laser Xue Huang 2024-04-30
11965966 Method, system, and apparatus for a lidar sensor with a large grating — 2024-04-23
11940709 High-gain differential electro-optic modulator — 2024-03-26
11892690 Optoelectronic ball grid array package with fiber — 2024-02-06
11860046 Temperature sensor Ryan T. Moore 2024-01-02
11855412 Tunable laser Xue Huang 2023-12-26
11848535 Integration of optical gain subassembly with silicon photonics — 2023-12-19
11621536 Wavelength locker Long Chen 2023-04-04
11543728 High-gain differential electro-optic modulator — 2023-01-03
11448823 Method, system, and apparatus for a LiDAR sensor with a large grating — 2022-09-20

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