Where does Plexxikon Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Plexxikon Inc. ranks #5,459 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 Plexxikon Inc. hold?

Plexxikon Inc. holds 63 US utility patents granted between 2015 and 2024, spanning 8 technology areas.

What is Plexxikon Inc.'s Innovation Score?

Plexxikon Inc. has an Innovation Score of 35.0 out of 100 (49th 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 Plexxikon Inc. focus on?

Plexxikon Inc.'s top technology area is C07D (Heterocyclic Compounds) with 61 patents, ranking #123 of 3,165 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

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

Plexxikon Inc.'s recent grant velocity is -69% 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 Plexxikon Inc.'s patents?

Plexxikon Inc.'s patents average 16.4 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 Plexxikon 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 US Corporation

Plexxikon Inc.

USPTO PatentsView assignee record - 63 granted patents across 8 technology areas, recorded in grant years 2015–2024. 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: C07D (Heterocyclic Compounds).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Plexxikon ranks #5,459 of 49,997 tracked US assignees by granted-patent volume, with 63 patents across 8 technology areas.

#5,459
of 49,997 US assignees by volume: 49th percentile
by Innovation Score (35.0/100): 16.4
avg claims per patent: -69%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5459 · US Corporation #5,459 · 63 grants

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

GRANTS-SMALL 63 grants
UPPER-Q #5,459/49,997
PHOTO-FINISH OLogN
CPC-NARROW C07D · 8 areas
INNOV-THIN 35.0/100
CLAIMS-RICH 16.4 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -69% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: OLogN Technologies AG (±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 Plexxikon’s 35.0 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 14.4 pts (41%) Velocity 0.8 pts (2%) Breadth 10.0 pts (29%) Claim depth 9.8 pts (28%)

Qualcomm Incorporated · highest

85
Blazer and Flip Flops · near

35
CPG Interational · near

35
Kimball International · near

35
Plexxikon · this assignee

35
Aliphcom · near

35
3D Lighting… · lowest

7

What this shows Plexxikon's Innovation Score is 35.0/100 (49th 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 Plexxikon?

Each dot is one of Plexxikon’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). Plexxikon’s own 16.4 claims/patent is at or below the 17.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Plexxikon's grants concentrate

Plexxikon Inc. is a focused PatentsView assignee: 8 CPC subclasses with 96.8% of grants classified under C07D (Heterocyclic Compounds). Peak complete grant year is 2017 (17 grants) versus a trough of 1 in 2022. By volume, Plexxikon sits between OLogN Technologies AG and Rehabilitation Institute of Chicago.

Plexxikon's three-year grant acceleration

From 2019–2021 to 2022–2024, Plexxikon Inc. moved from 25 to 3 grants (0.12x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Ologn

63
Origin Wireless

63
Patek Philippe Ge…

63
Pmc-sierra US

63
Purewick

63
R A Brands L L C

63
Rockspoon

63
Rehabilitation In…

63
Plexxikon ◀

63

What this shows Plexxikon holds 63 patents at rank #5,460, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Plexxikon

By rank, the assignees closest to #5,460 in granted patent volume.

Leaders in C07D (Heterocyclic Compounds)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Plexxikon, neither rank-band nor same-CPC leaders (those blocks stay above). In C07D (Heterocyclic Compounds), Plexxikon ranks #123 of 3,165 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (35 here).

Kimball International, Inc. 35 Blazer and Flip Flops, Inc. 35 CPG Interational LLC 35 Aliphcom 35

Similar claim depth

Nearest assignees by average claims per patent (16.4 here).

Elpis Technologies Inc. 16.4 avg Charles Schwab & Co., Inc. 16.4 avg Smith & Nephew Asia Pacific PTE. Limited 16.4 avg THE Children's Hospital OF Philadelphia 16.4 avg

Plexxikon's Innovation Score vs. every tracked assignee

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

35 49th percentile higher than 49% 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 · 2015–2024

Grants by year

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

View data table

Plexxikon Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	4.8%
2016	6	9.5%
2017	17	27.0%
2018	9	14.3%
2019	13	20.6%
2020	7	11.1%
2021	5	7.9%
2022	1	1.6%
2023	1	1.6%
2024	1	1.6%

Which technologies does Plexxikon Inc. patent most?

C07D - Heterocyclic Compounds 61

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 60

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 51

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 8

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 6

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 2

Y02A - Technologies FOR Adaptation TO Climate Change 2

Top 8 of 8 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

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

Plexxikon Inc.'s lead technology class is C07D (Heterocyclic Compounds), 96.8% of its portfolio - see every assignee active in that class. Explore C07D
Ranked #5,459 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Plexxikon Inc. against OLogN Technologies AG, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.0/100 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.