USPTO 2015–2025 USPTO PatentsView US Corporation

California Institute OF Technology

USPTO PatentsView assignee record - 1,842 granted patents across 266 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

1,842

Total patents granted

266

CPC technology areas

19.4

Avg claims per patent

-2%

5-year filing velocity

The verdict

California holds 1,842 US patents across 266 technology areas, rank #219 of 50,000 tracked assignees.

#219
of 50,000 US assignees by volume: Top 1%
by Innovation Score (68.4/100): 19.4
avg claims per patent: -2%
filing velocity, last 5 yrs

Portfolio overview

California Institute OF Technology has been granted 1,842 US utility patents between 2015 and 2025, placing California Institute OF Technology at rank #219 across all assignees tracked by PlainPatent. This portfolio spans 266 distinct Cooperative Patent Classification (CPC) subclasses, averaging 19.4 claims per patent with primary concentration in G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES). As a US Corporation, California Institute OF Technology is one of the broader-portfolio assignees in the PatentsView dataset. By volume, California sits between Microsoft Corporation (1,880 patents, rank #215) and Intel IP Corporation (1,818 patents, rank #223) - the closest US assignees by grant volume. The composite Innovation Score of 68.4/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 913 grants, compared with 929 in the 2015–2019 window, a -2% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. California Institute OF Technology's 19.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark California Institute OF Technology against peers pursuing similar technology classes.

Microsoft

1,880
Splunk

1,859
Compagnie General…

1,844
The Nielsen (US)

1,844
California Instit… ◀

1,842
Dr Ing h c F Pors…

1,841
Haier US Applianc…

1,829
President and Fel…

1,824
Intel IP

1,818

What this shows California holds 1,842 patents at rank #219, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near California

By rank, the assignees closest to #219 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

Other assignees with the most granted patents in California's primary technology class.

California's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

68 Top 1% higher than 99% of 50,000 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

California Institute OF Technology patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	193	10.5%
2016	209	11.3%
2017	164	8.9%
2018	175	9.5%
2019	188	10.2%
2020	173	9.4%
2021	174	9.4%
2022	163	8.8%
2023	157	8.5%
2024	143	7.8%
2025	103	5.6%

Which technologies does California Institute OF Technology patent most?

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 323

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 234

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 208

G02B - OPTICAL ELEMENTS, SYSTEMS OR APPARATUS 174

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 167

A61B - DIAGNOSIS; SURGERY; IDENTIFICATION 157

C12Q - MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS ; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES 147

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 133

C07K - PEPTIDES 116

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 101

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 100

B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES 96

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 93

G06F - ELECTRIC DIGITAL DATA PROCESSING 89

H10F - INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION 85

Top 15 of 266 technology areas

Patent Moat Analysis

Portfolio Volume Strong

Tech Breadth Diversified

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#219

Across all tracked assignees

Innovation Score

68.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does California Institute OF Technology hold?

California Institute OF Technology holds 1,842 US granted patents filed between 2015 and 2025, spanning 266 technology areas.

What is California Institute OF Technology's Innovation Score?

California Institute OF Technology has an Innovation Score of 68.4 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does California Institute OF Technology focus on?

California Institute OF Technology's top technology area is G01N (INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES) with 323 patents. The company has filed patents in 266 CPC subclasses total.

Is California Institute OF Technology's patent filing rate increasing or decreasing?

California Institute OF Technology's recent filing velocity is -2% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for California Institute OF Technology's patents?

California Institute OF Technology's patents average 19.4 claims each. This falls within the standard range, providing solid legal coverage.

How is the California Institute OF Technology patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

How to use this portfolio

California's 1,842 grants land it in the top 1% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - California ranks #219 of 50,000. Top 50 holders
Most of this portfolio concentrates in G01N - see who else leads that technology area. G01N leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.