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Lam Research Corporation (LRCX)

Nasdaq: LRCX · Special Industry Machinery, NEC · Fremont, CA · filing with the SEC since 1994
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Grade6.9
◀ Past 6.1● Present 7.5▶ Future 6.8
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Patents

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

4,834 patents granted to the 8 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 Lam Research Corporation’s names, not what it holds today.

Patents granted
4,834
4,798 utility, 26 design, 10 reissue, 1976 to Dec 31, 2025
Granted in 2025
244
Against 170 in 2024 and 103 in 2023
Applications published
4,065
288 of them in 2025
Names they are printed under
8
its own name, a subsidiary
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
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
Semiconductors327
Electrical machinery, apparatus, energy190
Surface technology, coating128
Computer technology22
Measurement18
Optics12
Chemical engineering11
Mechanical elements6
Machine tools5
Materials, metallurgy5
Handling3
Control2
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name8 counted
Lam Research Corporation its own name
US, as the owner printed on each patent. 190 more under the same name are not counted (printed in AT, printed in TW, printed in AU)
3,807 granted
1,308 published
Lam Research Corporation its own name
named as the applicant on its applications, in US. 72 more under the same name are not counted (printed in AT, printed in AU)
0 granted
2,386 published
Novellus Systems, Inc. a subsidiary
US, as the owner printed on each patent
999 granted
186 published
Novellus Systems, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
131 published
Coventor, Inc. a subsidiary
US, as the owner printed on each patent. 1 more under the same name are not counted (printed in GB)
24 granted
23 published
Coventor, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
23 published
SILFEX, INC. a subsidiary
named as the applicant on its applications, in US
0 granted
8 published
SILFEX, INC. a subsidiary
US, as the owner printed on each patent
4 granted
0 published
Names not counted (2)
LAM RESEARCH CORP
No country is printed for it. 0 granted and 14 published under it are not counted.
LAM RESEARCH CORP
Most of its patents print AT; this name counts in US. 0 granted and 2 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Dec 30, 2025D1,107,670Showerhead for a substrate processing systemLam Research Corporation
Dec 30, 2025D1,107,669Processing chamber purge plateLam Research Corporation
Dec 30, 202512,512,307Profile twisting control in dielectric etchElectrical machinery, apparatus, energyLam Research Corporation
Dec 30, 202512,510,826Photoresist development with halide chemistriesOpticsLam Research Corporation
Dec 30, 202512,510,825Photoresist development with halide chemistriesOpticsLam Research Corporation
Dec 30, 202512,509,772Split showerhead cooling plateSurface technology, coatingLam Research Corporation
Dec 23, 202512,507,338Matchless plasma source for semiconductor wafer fabricationChemical engineeringLam Research Corporation
Dec 23, 202512,505,991Tunability of edge plasma density for tilt controlElectrical machinery, apparatus, energyLam Research Corporation
Dec 23, 202512,505,985Systems and methods for compensating for RF power lossElectrical machinery, apparatus, energyLam Research Corporation
Dec 23, 202512,504,692Cyclic development of metal oxide based photoresist for etch stop deterrenceOpticsLam Research Corporation
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Dec 25, 20252025/0391658INTEGRATED HIGH ASPECT RATIO ETCHINGSemiconductorsLam Research Corporation
Dec 25, 20252025/0391638RF PULSING WITHIN PULSING FOR SEMICONDUCTOR RF PLASMA PROCESSINGElectrical machinery, apparatus, energyLam Research Corporation
Dec 18, 20252025/0385088BACKSIDE LAYER FOR A SEMICONDUCTOR SUBSTRATESurface technology, coatingLam Research Corporation
Dec 18, 20252025/0382703PLASMA ENHANCED LOW TEMPERATURE ATOMIC LAYER DEPOSITION OF METALSSurface technology, coatingLam Research Corporation
Dec 11, 20252025/0380612METHOD FOR DEPOSITING HIGHLY DOPED ALUMINUM NITRIDE PIEZOELECTRIC MATERIALSurface technology, coatingLam Research Corporation
Dec 11, 20252025/0379042METHOD OF CLEANING CHAMBER COMPONENTS WITH METAL ETCH RESIDUESBasic materials chemistryLam Research Corporation
Dec 11, 20252025/0379034SYSTEMS AND METHODS FOR CALIBRATING RF GENERATORS IN A SIMULTANEOUS MANNERElectrical machinery, apparatus, energyLam Research Corporation
Dec 11, 20252025/0379033APPARATUS AND METHOD FOR MODULATING SPATIAL DISTRIBUTION OF PLASMA AND ION ENERGY USING FREQUENCY-DEPENDENT TRANSMISSION LINEElectrical machinery, apparatus, energyLam Research Corporation
Dec 11, 20252025/0379032METAL-OXIDE VARISTOR (MOV) BASED SURGE PROTECTION CIRCUIT FOR PLASMA PROCESSING CHAMBERElectrical machinery, apparatus, energyLam Research Corporation
Dec 4, 20252025/0372367DEPOSITION AND ETCH OF SILICON-CONTAINING LAYERSemiconductorsLam Research Corporation
What it applied for, 2024 to 2025: Semiconductors 190 · Electrical machinery, apparatus, energy 149 · Surface technology, coating 97 · Optics 29 · Measurement 12 · Computer technology 8.

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 LRCX · research, not advice