Where does Sera4 Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sera4 Ltd. ranks #37,416 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Sera4 Ltd. hold?

Sera4 Ltd. holds 7 US utility patents granted between 2018 and 2023, spanning 6 technology areas.

What is Sera4 Ltd.'s Innovation Score?

Sera4 Ltd. has an Innovation Score of 33.6 out of 100 (45th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sera4 Ltd. focus on?

Sera4 Ltd.'s top technology area is H04L (Transmission OF Digital Information, e.g. Telegraphic Communication) with 7 patents, ranking #3,127 of 8,956 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Sera4 Ltd.'s patent grant rate increasing or decreasing?

Sera4 Ltd.'s recent grant velocity is +150% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Sera4 Ltd.'s patents?

Sera4 Ltd.'s patents average 18.6 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the Sera4 Ltd. 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sera4 Ltd.

USPTO PatentsView assignee record - 7 granted patents across 6 technology areas, recorded in grant years 2018–2023. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: H04L (Transmission OF Digital Information, e.g. Telegraphic Communication).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sera4 ranks #37,416 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 6 technology areas.

#37,416
of 49,997 US assignees by volume: 45th percentile
by Innovation Score (33.6/100): 18.6
avg claims per patent: +150%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R37416 · Foreign Corporation #37,416 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 7 grants
MID-PACK #37,416/49,997
PHOTO-FINISH Sensor Networks
CPC-NARROW H04L · 6 areas
INNOV-THIN 33.6/100
CLAIMS-RICH 18.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +150% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sensor Networks, Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How Sera4’s 33.6 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 7.2 pts (21%) Velocity 6.7 pts (20%) Breadth 8.7 pts (26%) Claim depth 11.1 pts (33%)

Qualcomm Incorporated · highest

85
Sera4 · this assignee

34
3D Lighting… · lowest

7

What this shows Sera4's Innovation Score is 33.6/100 (45th percentile of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for Sera4?

Each dot is one of Sera4’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Sera4’s own 18.6 claims/patent is ABOVE the 15.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Sera4 vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Sera4's grants concentrate

Sera4 Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under H04L (Transmission OF Digital Information, e.g. Telegraphic Communication). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2018. By volume, Sera4 sits between Sensor Networks, Inc. and Seti-tec.

Sera4's three-year grant acceleration

Sera4 Ltd. shows 3 grants in 2022–2024 against only 3 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Sensor Networks

7
Sentiss Pharma Pr…

7
Seppi M SPA

7
Septeos

7
Serb

7
Serpin Pharma

7
SET North America

7
Seti-tec

7
Sera4 ◀

7

What this shows Sera4 holds 7 patents at rank #37,351, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sera4

By rank, the assignees closest to #37,351 in granted patent volume.

Leaders in H04L (Transmission OF Digital Information)

Other assignees with the most granted patents in Sera4's primary technology class.

Sera4's Innovation Score vs. every tracked assignee

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

34 45th percentile higher than 45% of 49,997 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 · 2018–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Sera4 Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	14.3%
2019	1	14.3%
2021	2	28.6%
2022	1	14.3%
2023	2	28.6%

Which technologies does Sera4 Ltd. patent most?

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 7

H04W - Wireless Communication Networks 7

G07C - Time OR Attendance REGISTERS; Registering OR Indicating THE Working OF MACHINES; Generating Random NUMBERS; Voting OR Lottery APPARATUS; Arrangements, Systems OR Apparatus FOR Checking NOT Provided FOR Elsewhere 7

G06F - Electric Digital Data Processing 1

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 1

E05B - LOCKS; Accessories THEREFOR; Handcuffs 1

Top 6 of 6 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Sera4 Ltd.'s patent record in context - here's where to go next.

Sera4 Ltd.'s lead technology class is H04L (Transmission OF Digital Information, e.g. Telegraphic Communication), 100% of its portfolio - see every assignee active in that class. Explore H04L
Ranked #37,416 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sera4 Ltd. against Sensor Networks, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.6/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

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

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 by PlainPatent , US Patent Intelligence Editorial Process · 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.