Where does Phostek, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Phostek, Inc. ranks #49,589 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 Phostek, Inc. hold?

Phostek, Inc. holds 5 US utility patents granted between 2015 and 2015, spanning 6 technology areas.

What is Phostek, Inc.'s Innovation Score?

Phostek, Inc. has an Innovation Score of 29.9 out of 100 (32nd 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 Phostek, Inc. focus on?

Phostek, Inc.'s top technology area is H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers) with 5 patents, ranking #311 of 857 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Phostek, Inc.'s patent grant rate increasing or decreasing?

Phostek, Inc.'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 Phostek, Inc.'s patents?

Phostek, Inc.'s patents average 26.2 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 Phostek, Inc. 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

Phostek, Inc.

USPTO PatentsView assignee record - 5 granted patents across 6 technology areas, recorded in grant years 2015–2015. 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: H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Phostek ranks #49,589 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 6 technology areas.

#49,589
of 49,997 US assignees by volume: 32nd percentile
by Innovation Score (29.9/100): 26.2
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R49589 · Foreign Corporation #49,589 · 5 grants

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

GRANTS-MICRO 5 grants
BOTTOM-DECILE #49,589/49,997
PHOTO-FINISH Philoptics
CPC-NARROW H10H · 6 areas
INNOV-THIN 29.9/100
CLAIMS-DENSE 26.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Philoptics Co., Ltd. (±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 Phostek’s 29.9 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 6.2 pts (21%) Velocity 0.0 pts (0%) Breadth 8.7 pts (29%) Claim depth 15.0 pts (50%)

Qualcomm Incorporated · highest

85
Phostek · this assignee

30
3D Lighting… · lowest

7

What this shows Phostek's Innovation Score is 29.9/100 (32nd 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 Phostek?

Each dot is one of Phostek’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). Phostek’s own 26.2 claims/patent is ABOVE the 17.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Phostek's grants concentrate

Phostek, Inc. is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers). By volume, Phostek sits between Philoptics Co., Ltd. and Physician Electronic Networks, L.L.C..

Philoptics

5
Philtech

5
Phoenix II A/S

5
Phosphorex

5
Photonstar LED

5
Photospectra Heal…

5
Phynexus

5
Physician Network…

5
Phostek ◀

5

What this shows Phostek holds 5 patents at rank #49,510, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Phostek

By rank, the assignees closest to #49,510 in granted patent volume.

Leaders in H10H (Inorganic Light-emitting Semiconductor Devices Having Pot…)

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

Phostek's Innovation Score vs. every tracked assignee

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

30 32nd percentile higher than 32% 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

Grants by year

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

View data table

Phostek, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	100.0%

Which technologies does Phostek, Inc. patent most?

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 5

H01L - Semiconductor Devices NOT Covered BY Class H10 4

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 3

H10D - Inorganic Electric Semiconductor Devices 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 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

Phostek, Inc.'s patent record in context - here's where to go next.

Phostek, Inc.'s lead technology class is H10H (Inorganic Light-emitting Semiconductor Devices Having Potential Barriers), 100% of its portfolio - see every assignee active in that class. Explore H10H
Ranked #49,589 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Phostek, Inc. against Philoptics Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.9/100 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.