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USPTO Patent Rankings Data through Dec 31, 2025
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David Rich — 28 Patents

ATAT&T: 6 patents #3,060 of 18,772Top 20%
SPSaint-Gobain Performance Plastics: 5 patents #53 of 490Top 15%
ASAgere Systems: 2 patents #639 of 1,849Top 35%
XAXhale Assurance: 2 patents #3 of 7Top 45%
MIMicrochip Technology Incorporated: 2 patents #307 of 958Top 35%
VLVersiv Composites Limited: 1 patents #7 of 8Top 90%
CACa: 1 patents #669 of 1,424Top 50%
AGAgere Systems Guardian: 1 patents #274 of 810Top 35%
GIGeneral Instrument: 1 patents #417 of 950Top 45%
University of Florida: 1 patents #1,174 of 2,560Top 50%
Nashua, NH: #40 of 1,592 inventorsTop 3%
New Hampshire: #391 of 12,181 inventorsTop 4%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
David Rich has been granted 28 US patents while listed as an inventor at AT&T. The first was granted in 1989 and the most recent in December 2025. David Rich ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list David Rich in Nashua, NH, US.

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12497549 Composition for preparing a release coating Pierre Chevalier, Zhenbin Niu, Sze-Sze Ng, Lori Dehlin, Deana Dujardin +4 more 2025-12-16
12247619 Solenoid low friction bearing liner Nicole M. Dirando 2025-03-11
12157292 Multilayer composite article Gerard T. Buss, James M. McMartin, Timothy P. Pollock 2024-12-03
11980805 Overlay systems and methods of installing overlay systems Timothy Sadick 2024-05-14
11852194 Solenoid low friction bearing liner Nicole M. Dirando 2023-12-26
11708857 Solenoid low friction bearing liner Brian McNamara, Ian D. Hutcheson, Gerard T. Buss 2023-07-25
11229832 Overlay systems and methods of installing overlay systems Timothy Sadick 2022-01-25
11220120 Printer assembly low friction roller liner Brian McNamara, Ian D. Hutcheson, Gerard T. Buss 2022-01-11
11162531 Solenoid low friction bearing liner Brian McNamara, Ian D. Hutcheson, Gerard T. Buss 2021-11-02
10420490 Systems and methods for physiological monitoring using multiple signal processing devices Andrew Kersey, Sean Cohen, Richard J. Melker 2019-09-24
10390715 Photoplethysmography sensors Richard J. Melker, Andrew Kersey, Matt Culen 2019-08-27
10120718 Reservation of hardware resources in a computer system based on utilization measurements during time ranges Alex Esterkin, James B. Mercer 2018-11-06
9724002 Methods, devices and systems for photoplethysmography at the nasal columella Andrew Kersey 2017-08-08
D748274 Nasal alar photoplethysmography probe housing Andrew Kersey, Matt Culen 2016-01-26
7498876 Amplifier having half-wave tracking power rails Robert Peruzzi 2009-03-03
6832383 MEMS disk drive and method of manufacture therefor Michael Holmberg 2004-12-14
6404364 Multistage converter employing digital dither H. Scott Fetterman 2002-06-11
6355881 Means for sealing an electronic or optical component within an enclosure housing Brant P. Braeges 2002-03-12
5939904 Method and apparatus for controlling the common-mode output voltage of a differential buffer H. Scott Fetterman 1999-08-17 $71,558,000
5847556 Precision current source Makeshwar Kothandaraman, Bijit Thakorbhai Patel 1998-12-08 $52,365,000
5745061 Method of improving the stability of a sigma-delta modulator employing dither Steven R. Norsworthy 1998-04-28 $18,441,000
5675352 Liquid crystal display driver Harold J. Wilson 1997-10-07 $17,228,000
5646518 PTAT current source Kadaba Lakshmikumar, Krishnaswamy Nagaraj, Khong-Meng Tham 1997-07-08 $9,263,000
5530442 Circuit and method for testing a dithered analog-to-digital converter Steven R. Norsworthy, Robert W. Walden 1996-06-25
5307517 Adaptive notch filter for FM interference cancellation — 1994-04-26

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