Where does Philoptics Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Philoptics Co., Ltd. ranks #49,579 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 Philoptics Co., Ltd. hold?

Philoptics Co., Ltd. holds 5 US utility patents granted between 2016 and 2025, spanning 7 technology areas.

What is Philoptics Co., Ltd.'s Innovation Score?

Philoptics Co., Ltd. has an Innovation Score of 25.3 out of 100 (17th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Philoptics Co., Ltd.'s patent grant rate increasing or decreasing?

Philoptics Co., Ltd.'s recent grant velocity is -100% 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 Philoptics Co., Ltd.'s patents?

Philoptics Co., Ltd.'s patents average 16.2 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 Philoptics Co., 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

Philoptics Co., Ltd.

Q: What technology areas does Philoptics Co., Ltd. focus on?

Philoptics Co., Ltd.'s top technology area is B23K (Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam) with 4 patents, ranking #455 of 1,623 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 7 technology areas, recorded in grant years 2016–2025. 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: B23K (Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Philoptics ranks #49,579 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 7 technology areas.

#49,579
of 49,997 US assignees by volume: 17th percentile
by Innovation Score (25.3/100): 16.2
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R49579 · Foreign Corporation #49,579 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #49,579/49,997
PHOTO-FINISH Pharma Integration…
CPC-NARROW B23K · 7 areas
INNOV-THIN 25.3/100
CLAIMS-RICH 16.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Pharma Integration S.R.L. (±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 Philoptics’s 25.3 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 6.2 pts (25%) Velocity 0.0 pts (0%) Breadth 9.4 pts (37%) Claim depth 9.7 pts (38%)

Qualcomm Incorporated · highest

85
Philoptics · this assignee

25
3D Lighting… · lowest

7

What this shows Philoptics's Innovation Score is 25.3/100 (17th 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 Philoptics?

Each dot is one of Philoptics’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). Philoptics’s own 16.2 claims/patent is at or below the 17.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Philoptics's grants concentrate

Philoptics Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 80% of grants classified under B23K (Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam). By volume, Philoptics sits between Pharma Integration S.R.L. and Phostek, Inc..

Pharma Integratio…

5
Pharmanutra S P A

5
Pharmaresearch

5
Pharosgen

5
Philtech

5
Phoenix II A/S

5
Phosphorex

5
Phostek

5
Philoptics ◀

5

What this shows Philoptics holds 5 patents at rank #49,506, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Philoptics

By rank, the assignees closest to #49,506 in granted patent volume.

Leaders in B23K (Soldering OR Unsoldering)

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

Philoptics's Innovation Score vs. every tracked assignee

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

25 17th percentile higher than 17% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Philoptics Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	20.0%
2017	1	20.0%
2019	1	20.0%
2025partial year	2	40.0%

Which technologies does Philoptics Co., Ltd. patent most?

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 4

H01L - Semiconductor Devices NOT Covered BY Class H10 3

C03B - Manufacture, Shaping, OR Supplementary Processes 3

B44C - Producing Decorative Effects ; MOSAICS; Tarsia Work ; Paperhanging 2

H10K - Organic Electric Solid-state Devices 1

G02B - Optical Elements, Systems OR Apparatus 1

H01S - Devices Using THE Process OF Light Amplification BY Stimulated Emission OF Radiation [LASER] TO Amplify OR Generate LIGHT; Devices Using Stimulated Emission OF Electromagnetic Radiation IN Wave Ranges Other Than Optical 1

Top 7 of 7 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

Philoptics Co., Ltd.'s patent record in context - here's where to go next.

Philoptics Co., Ltd.'s lead technology class is B23K (Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam), 80% of its portfolio - see every assignee active in that class. Explore B23K
Ranked #49,579 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Philoptics Co., Ltd. against Pharma Integration S.R.L., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 25.3/100 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.