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Quantum-Si Incorporated (QSI)

Nasdaq: QSI · Measuring & Controlling Devices, NEC · Branford, CT · filing with the SEC since 2020
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Grade2.8
◀ Past 1.9● Present 2.5▶ Future 4.1
1 est.
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Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

123 patents granted to the 2 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to Quantum-Si Incorporated’s names, not what it holds today.

Patents granted
123
123 utility, 1976 to Dec 31, 2025
Granted in 2025
19
Against 31 in 2024 and 16 in 2023
Applications published
233
15 of them in 2025
Names they are printed under
2
its own name
By yearGrantedApplications published
'15'16'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Measurement42
Semiconductors14
Computer technology13
Optics10
Biotechnology6
Chemical engineering2
Organic fine chemistry2
Basic materials chemistry1
Surface technology, coating1
Engines, pumps, turbines1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name2 counted
Quantum-Si Incorporated its own name
US, as the owner printed on each patent
123 granted
202 published
Quantum-Si Incorporated its own name
named as the applicant on its applications, in US
0 granted
31 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Dec 30, 202512,514,005Integrated sensorSemiconductorsQuantum-Si Incorporated
Dec 30, 202512,510,477Optical system and assay chip for probing, detecting and analyzing moleculesMeasurementQuantum-Si Incorporated
Nov 18, 202512,477,845Optical and electrical secondary path rejectionSemiconductorsQuantum-Si Incorporated
Nov 11, 202512,469,581Machine learning enabled pulse and base calling for sequencing devicesComputer technologyQuantum-Si Incorporated
Jul 22, 202512,366,706Optical microdisks for integrated devicesMeasurementQuantum-Si Incorporated
Jul 15, 202512,360,114Methods and compositions for protein sequencingComputer technologyQuantum-Si Incorporated
May 27, 202512,317,615Integrated circuit having mirrored pixel configurationSemiconductorsQuantum-Si Incorporated
May 27, 202512,312,377Biconjugatable labels and methods of useOrganic fine chemistryQuantum-Si Incorporated
May 13, 202512,300,711Integrated sensor for lifetime characterizationSemiconductorsQuantum-Si Incorporated
May 13, 202512,297,496Integrated circuit with improved charge transfer efficiency and associated techniquesMeasurementQuantum-Si Incorporated
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Dec 4, 20252025/0369978POLYPEPTIDE CLEAVING REAGENTS AND USES THEREOFBiotechnologyQuantum-Si Incorporated
Nov 13, 20252025/0347624PHOTONIC STRUCTURES AND INTEGRATED DEVICE FOR DETECTING AND ANALYZING MOLECULESMeasurementQuantum-Si Incorporated
Nov 6, 20252025/0341526NOVEL DYESBasic materials chemistryQuantum-Si Incorporated
Oct 9, 20252025/0314657METHODS FOR DETECTION OF ANALYTESAnalysis of biological materialsQuantum-Si Incorporated
Sep 11, 20252025/0283886METHODS AND COMPOSITIONS FOR PROTEIN SEQUENCINGComputer technologyQuantum-Si Incorporated
Aug 21, 20252025/0267967BACKSIDE ILLUMINATED STRUCTURES WITH PARALLEL CHARGE TRANSFERMeasurementQuantum-Si Incorporated
Jun 5, 20252025/0179123METHODS AND COMPOSITIONS FOR PROTEIN SEQUENCINGBiotechnologyQuantum-Si Incorporated
May 8, 20252025/0147035METHODS FOR DETECTION OF POST-TRANSLATIONAL MODIFICATIONSAnalysis of biological materialsQuantum-Si Incorporated
Apr 24, 20252025/0130238METHODS AND COMPOSITIONS FOR PROTEIN SEQUENCINGComputer technologyQuantum-Si Incorporated
Apr 24, 20252025/0130103INTEGRATED PHOTODETECTOR WITH CHARGE STORAGE BIN OF VARIED DETECTION TIMEMeasurementQuantum-Si Incorporated
What it applied for, 2024 to 2025: Measurement 16 · Biotechnology 11 · Computer technology 7 · Analysis of biological materials 6 · Semiconductors 5 · Optics 3.

A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.

SI Assistanton QSI · research, not advice