USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Kobayashi Pharmaceutical Co., Ltd.

USPTO PatentsView assignee record - 90 granted patents across 33 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61F (FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICE).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

5.9

Avg claims per patent

+209%

5-year filing velocity

The verdict

Kobayashi holds 90 US patents across 33 technology areas, rank #4,009 of 50,000 tracked assignees.

#4,009
of 50,000 US assignees by volume: Top 13%
by Innovation Score (50.3/100): 5.9
avg claims per patent: +209%
filing velocity, last 5 yrs

Portfolio overview

Kobayashi Pharmaceutical Co., Ltd. has been granted 90 US utility patents between 2015 and 2025, placing Kobayashi Pharmaceutical Co., Ltd. at rank #4,009 across all assignees tracked by PlainPatent. This portfolio spans 33 distinct Cooperative Patent Classification (CPC) subclasses, averaging 5.9 claims per patent with primary concentration in A61F (FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICE). As a Foreign Corporation, Kobayashi Pharmaceutical Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Kobayashi sits between Ecole Superieure DE Physique ET DE Chimie Industrielles DE LA Ville DE Paris (90 patents, rank #4,005) and Medacta International Sa (90 patents, rank #4,013) - the closest US assignees by grant volume. The composite Innovation Score of 50.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 68 grants, compared with 22 in the 2015–2019 window, a +209% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Kobayashi Pharmaceutical Co., Ltd.'s 5.9 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 33 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Kobayashi Pharmaceutical Co., Ltd. against peers pursuing similar technology classes.

Ecole Superieure…

90
Egis Technology

90
Federal-mogul Mot…

90
Hodogaya Chemical

90
Liebherr-werk Ehi…

90
Lixil

90
Lashify

90
Medacta Internati…

90
Kobayashi Pharmac… ◀

90

What this shows Kobayashi holds 90 patents at rank #4,009, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kobayashi

By rank, the assignees closest to #4,009 in granted patent volume.

Leaders in A61F (Filters Implantable INTO Blood Vessels)

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

Kobayashi's Innovation Score vs. every tracked assignee

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

50 Top 13% higher than 87% of 50,000 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

Kobayashi Pharmaceutical Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	6.7%
2016	2	2.2%
2017	4	4.4%
2018	3	3.3%
2019	7	7.8%
2020	7	7.8%
2021	13	14.4%
2022	20	22.2%
2023	12	13.3%
2024	12	13.3%
2025	4	4.4%

Which technologies does Kobayashi Pharmaceutical Co., Ltd. patent most?

A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRS 15

A61C - DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE 13

A46B - BRUSHES 12

B65D - CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 10

A61K - PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES 10

A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS 8

A46D - MANUFACTURE OF BRUSHES 7

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 6

F24V - COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR 5

A61J - CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE 5

A61Q - SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS 5

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 4

E03D - WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR 4

A61M - DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY ; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY ; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR 4

B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 3

Top 15 of 33 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#4,009

Across all tracked assignees

Innovation Score

50.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Kobayashi Pharmaceutical Co., Ltd. hold?

Kobayashi Pharmaceutical Co., Ltd. holds 90 US granted patents filed between 2015 and 2025, spanning 33 technology areas.

What is Kobayashi Pharmaceutical Co., Ltd.'s Innovation Score?

Kobayashi Pharmaceutical Co., Ltd. has an Innovation Score of 50.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kobayashi Pharmaceutical Co., Ltd. focus on?

Kobayashi Pharmaceutical Co., Ltd.'s top technology area is A61F (FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRS) with 15 patents. The company has filed patents in 33 CPC subclasses total.

Is Kobayashi Pharmaceutical Co., Ltd.'s patent filing rate increasing or decreasing?

Kobayashi Pharmaceutical Co., Ltd.'s recent filing velocity is +209% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Kobayashi Pharmaceutical Co., Ltd.'s patents?

Kobayashi Pharmaceutical Co., Ltd.'s patents average 5.9 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Kobayashi Pharmaceutical 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.

How to use this portfolio

Kobayashi's 90 grants land it in the top 13% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Kobayashi ranks #4,009 of 50,000. Top 50 holders
Most of this portfolio concentrates in A61F - see who else leads that technology area. A61F leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.