Where does Kama-Tech (HK) Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Kama-Tech (HK) Limited ranks #11,692 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 Kama-Tech (HK) Limited hold?

Kama-Tech (HK) Limited holds 26 US utility patents granted between 2015 and 2025, spanning 14 technology areas.

What is Kama-Tech (HK) Limited's Innovation Score?

Kama-Tech (HK) Limited has an Innovation Score of 39.9 out of 100 (top 37% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Kama-Tech (HK) Limited's patent grant rate increasing or decreasing?

Kama-Tech (HK) Limited's recent grant velocity is -67% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Kama-Tech (HK) Limited's patents?

Kama-Tech (HK) Limited's patents average 16.6 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 Kama-Tech (HK) Limited 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

Kama-Tech (HK) Limited

Q: What technology areas does Kama-Tech (HK) Limited focus on?

Kama-Tech (HK) Limited's top technology area is G01S (Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves) with 19 patents, ranking #311 of 3,153 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

USPTO PatentsView assignee record - 26 granted patents across 14 technology areas, recorded in grant years 2015–2025. 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: G01S (Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arra).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Kama-tech ranks #11,692 of 49,997 tracked US assignees by granted-patent volume, with 26 patents across 14 technology areas.

#11,692
of 49,997 US assignees by volume: Top 37%
by Innovation Score (39.9/100): 16.6
avg claims per patent: -67%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R11692 · Foreign Corporation #11,692 · 26 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 26 grants
UPPER-Q #11,692/49,997
PHOTO-FINISH Knox Associates
CPC-FOCUS G01S · 14 areas
INNOV-THIN 39.9/100
CLAIMS-RICH 16.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -67% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Knox Associates, 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 Kama-tech’s 39.9 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 11.4 pts (29%) Velocity 5.3 pts (13%) Breadth 13.2 pts (33%) Claim depth 10.0 pts (25%)

Qualcomm Incorporated · highest

85
Apaq Technology · near

40
Kama-Tech (HK) · this assignee

40
Stella Chemifa · near

40
Stitch Fix · near

40
Valcare · near

40
3D Lighting… · lowest

7

What this shows Kama-tech's Innovation Score is 39.9/100 (top 37% 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 Kama-tech?

Each dot is one of Kama-tech’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). Kama-tech’s own 16.6 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.

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

Where Kama-tech's grants concentrate

Kama-Tech (HK) Limited is a focused PatentsView assignee: 14 CPC subclasses with 73.1% of grants classified under G01S (Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arra). Peak complete grant year is 2018 (5 grants) versus a trough of 2 in 2016. By volume, Kama-tech sits between Korea National University OF Transportation INDUSTRY—ACADEMIC Cooperation Foundation and L3vel, LLC.

Kama-tech's three-year grant acceleration

Kama-Tech (HK) Limited shows 4 grants in 2022–2024 against only 5 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.

Korea National Un…

26
Krauss-maffei Weg…

26
KS Kolbenschmidt

26
Kuang-chi Institu…

26
Knox Associates

26
Konnectronix

26
Kraton

26
L3vel

26
Kama-tech (HK) ◀

26

What this shows Kama-Tech holds 26 patents at rank #11,703, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kama-Tech

By rank, the assignees closest to #11,703 in granted patent volume.

Leaders in G01S (Radio Direction-finding)

Other assignees with the most granted patents in Kama-Tech's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Kama-Tech, neither rank-band nor same-CPC leaders (those blocks stay above). In G01S (Radio Direction-finding), Kama-Tech ranks #311 of 3,153 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (40 here).

Stella Chemifa Corporation 40 Valcare, Inc. 40 Apaq Technology Co., Ltd. 40 Stitch Fix, Inc. 40

Kama-tech's Innovation Score vs. every tracked assignee

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

40 Top 37% higher than 63% 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 · 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

Kama-Tech (HK) Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	15.4%
2016	2	7.7%
2017	4	15.4%
2018	5	19.2%
2019	3	11.5%
2021	2	7.7%
2023	2	7.7%
2024	2	7.7%
2025partial year	2	7.7%

Which technologies does Kama-Tech (HK) Limited patent most?

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 19

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 10

G08G - Traffic Control Systems 5

F41G - Weapon SIGHTS; Aiming 3

G02B - Optical Elements, Systems OR Apparatus 3

G01P - Measuring Linear OR Angular Speed, Acceleration, Deceleration, OR SHOCK; Indicating Presence, Absence, OR Direction, OF Movement 3

H03F - Amplifiers 2

H04N - Pictorial Communication, e.g. Television 2

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 1

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 1

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 1

G06V - Image OR Video Recognition OR Understanding 1

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 1

F41B - Weapons FOR Projecting Missiles Without USE OF Explosive OR Combustible Propellant CHARGE; Weapons NOT Otherwise Provided FOR 1

Top 14 of 14 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

Kama-Tech (HK) Limited's patent record in context - here's where to go next.

Kama-Tech (HK) Limited's lead technology class is G01S (Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arra), 73.1% of its portfolio - see every assignee active in that class. Explore G01S
Ranked #11,692 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kama-Tech (HK) Limited against Korea National University OF Transportation INDUSTRY—ACADEMIC Cooperation Foundation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.9/100 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.