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

According to USPTO PatentsView (2015–2025 granted utility patents), Kempharm, Inc. ranks #6,911 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 Kempharm, Inc. hold?

Kempharm, Inc. holds 48 US utility patents granted between 2015 and 2022, spanning 7 technology areas.

What is Kempharm, Inc.'s Innovation Score?

Kempharm, Inc. has an Innovation Score of 36.1 out of 100 (top 47% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kempharm, Inc. focus on?

Kempharm, Inc.'s top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 45 patents, ranking #499 of 7,163 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

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

Kempharm, Inc.'s recent grant velocity is -34% 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 Kempharm, Inc.'s patents?

Kempharm, Inc.'s patents average 20.9 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 Kempharm, 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

Kempharm, Inc.

USPTO PatentsView assignee record - 48 granted patents across 7 technology areas, recorded in grant years 2015–2022. 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: A61K (Preparations FOR Medical, Dental OR Toiletry Purposes).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Kempharm ranks #6,911 of 49,997 tracked US assignees by granted-patent volume, with 48 patents across 7 technology areas.

#6,911
of 49,997 US assignees by volume: Top 47%
by Innovation Score (36.1/100): 20.9
avg claims per patent: -34%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R6911 · US Corporation #6,911 · 48 grants

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

GRANTS-SMALL 48 grants
UPPER-Q #6,911/49,997
PHOTO-FINISH Imperial Tobacco
CPC-NARROW A61K · 7 areas
INNOV-THIN 36.1/100
CLAIMS-DENSE 20.9 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -34% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Imperial Tobacco Limited (±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 Kempharm’s 36.1 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 13.4 pts (37%) Velocity 0.8 pts (2%) Breadth 9.4 pts (26%) Claim depth 12.5 pts (35%)

Qualcomm Incorporated · highest

85
Cellix Bio Private · near

36
Germans Boada · near

36
Kempharm · this assignee

36
Sengled Optoelectron… · near

36
Voicebox · near

36
3D Lighting… · lowest

7

What this shows Kempharm's Innovation Score is 36.1/100 (top 47% 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 Kempharm?

Each dot is one of Kempharm’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). Kempharm’s own 20.9 claims/patent is ABOVE the 15.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Kempharm's grants concentrate

Kempharm, Inc. is a focused PatentsView assignee: 7 CPC subclasses with 93.8% of grants classified under A61K (Preparations FOR Medical, Dental OR Toiletry Purposes). Peak complete grant year is 2020 (9 grants) versus a trough of 2 in 2016. By volume, Kempharm sits between Imperial Tobacco Limited and Lunit Inc..

Kempharm's three-year grant acceleration

From 2019–2021 to 2022–2024, Kempharm, Inc. moved from 24 to 3 grants (0.13x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Imperial Tobacco

48
Innophase

48
J A Woollam

48
Jrsk

48
Kuwait Institute…

48
Kyoto Prefectural…

48
Lion Group

48
Lunit

48
Kempharm ◀

48

What this shows Kempharm holds 48 patents at rank #6,910, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kempharm

By rank, the assignees closest to #6,910 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Kempharm, neither rank-band nor same-CPC leaders (those blocks stay above). In A61K (Preparations FOR Medical), Kempharm ranks #499 of 7,163 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (36 here).

Sengled Optoelectronics Co., Ltd. 36 Cellix Bio Private Limited 36 Voicebox Technologies Corporation 36 Germans Boada, S.A. 36

Kempharm's Innovation Score vs. every tracked assignee

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

36 Top 47% higher than 53% 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 · 2015–2022

Grants by year

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

View data table

Kempharm, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	8.3%
2016	2	4.2%
2017	8	16.7%
2018	7	14.6%
2019	8	16.7%
2020	9	18.8%
2021	7	14.6%
2022	3	6.3%

Which technologies does Kempharm, Inc. patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 45

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 42

C07D - Heterocyclic Compounds 40

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 3

C07K - Peptides 3

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 3

Y10T - Technical Subjects Covered BY Former US Classification 2

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

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

Kempharm, Inc.'s lead technology class is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes), 93.8% of its portfolio - see every assignee active in that class. Explore A61K
Ranked #6,911 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kempharm, Inc. against Imperial Tobacco Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.1/100 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.