USPTO 2015–2025 USPTO PatentsView Foreign Corporation

May-hwa Enterprise Corporation

USPTO PatentsView assignee record - 5 granted patents across 10 technology areas, active 2018–2021. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C08G (MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

13.6

Avg claims per patent

-75%

5-year filing velocity

The verdict

May-hwa holds 5 US patents across 10 technology areas, rank #48,559 of 50,000 tracked assignees.

#48,559
of 50,000 US assignees by volume: Top 82%
by Innovation Score (25.5/100): 13.6
avg claims per patent: -75%
filing velocity, last 5 yrs

Portfolio overview

May-hwa Enterprise Corporation has been granted 5 US utility patents between 2018 and 2021, placing May-hwa Enterprise Corporation at rank #48,559 across all assignees tracked by PlainPatent. This portfolio spans 10 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.6 claims per patent with primary concentration in C08G (MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS). As a Foreign Corporation, May-hwa Enterprise Corporation is one of the more focused assignees in the PatentsView dataset. By volume, May-hwa sits between Masiá Ciscar S.a. (5 patents, rank #48,555) and MBD Co., Ltd. (5 patents, rank #48,563) - the closest US assignees by grant volume. The composite Innovation Score of 25.5/100 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 1 grants, compared with 4 in the 2015–2019 window, a -75% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. May-hwa Enterprise Corporation's 13.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 10 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark May-hwa Enterprise Corporation against peers pursuing similar technology classes.

MASIÁ Ciscar

5
Matia Robotics Me…

5
Mavic Group

5
Maxone Semiconduc…

5
Mayhew Steel Prod…

5
MB Imports

5
MBC Pharma

5
MBD

5
May-hwa Enterprise ◀

5

What this shows May-hwa holds 5 patents at rank #48,559, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near May-hwa

By rank, the assignees closest to #48,559 in granted patent volume.

Leaders in C08G (Macromolecular Compounds Obtained Otherwise THAN BY React…)

Other assignees with the most granted patents in May-hwa's primary technology class.

May-hwa's Innovation Score vs. every tracked assignee

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

26 Top 82% higher than 18% 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 · 2018–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

May-hwa Enterprise Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	2	40.0%
2019	2	40.0%
2021	1	20.0%

Which technologies does May-hwa Enterprise Corporation patent most?

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 5

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 3

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 2

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 2

B05D - PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL 2

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 2

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1

B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 1

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1

B29B - PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS 1

Top 10 of 10 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#48,559

Across all tracked assignees

Innovation Score

25.5 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 May-hwa Enterprise Corporation hold?

May-hwa Enterprise Corporation holds 5 US granted patents filed between 2018 and 2021, spanning 10 technology areas.

What is May-hwa Enterprise Corporation's Innovation Score?

May-hwa Enterprise Corporation has an Innovation Score of 25.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does May-hwa Enterprise Corporation focus on?

May-hwa Enterprise Corporation's top technology area is C08G (MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS) with 5 patents. The company has filed patents in 10 CPC subclasses total.

Is May-hwa Enterprise Corporation's patent filing rate increasing or decreasing?

May-hwa Enterprise Corporation's recent filing velocity is -75% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for May-hwa Enterprise Corporation's patents?

May-hwa Enterprise Corporation's patents average 13.6 claims each. This falls within the standard range, providing solid legal coverage.

How is the May-hwa Enterprise Corporation 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

May-hwa's 5 grants land it in the top 82% 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 - May-hwa ranks #48,559 of 50,000. Top 50 holders
Most of this portfolio concentrates in C08G - see who else leads that technology area. C08G 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.