PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hong Kong Ecoaqua Co., Limited

USPTO PatentsView assignee record - 23 granted patents across 2 technology areas, recorded in grant years 2017–2020. 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: C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE).

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hong ranks #12,971 of 50,000 tracked US assignees by granted-patent volume, with 23 patents across 2 technology areas.

#12,971
of 50,000 US assignees by volume
Top 96%
by Innovation Score (17.1/100)
1.9
avg claims per patent
-95%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R12971 · Foreign Corporation #12,971 · 23 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

  • GRANTS-SMALL 23 grants
  • MID-PACK #12,971/50,000
  • PHOTO-FINISH Harpoon Therapeutics
  • CPC-NARROW C02F · 2 areas
  • INNOV-LOW 17.1/100
  • CLAIMS-SPARSE 1.9 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-DROP -95% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Harpoon Therapeutics, Inc. (±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.

Innovation-score neighbourhood around Hong

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

What this shows Hong Kong Ecoaqua Co., Limited stamps GRANTS-SMALL, MID-PACK, PHOTO-FINISH, CPC-NARROW, INNOV-LOW, CLAIMS-SPARSE, TYPE-FRNCORP, VEL-DROP, BOOK-FULL. Volume places it #12,971 of 50,000; Innovation Score 17.1/100 sits in the top 96% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Harpoon Therapeutics, Inc. (±0 grants).

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

Portfolio overview

Hong Kong Ecoaqua Co., Limited has been granted 23 US utility patents between 2017 and 2020, placing Hong Kong Ecoaqua Co., Limited at #12,971 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 2 distinct Cooperative Patent Classification (CPC) subclasses, averaging 1.9 claims per patent with primary concentration in C02F (TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE). As a Foreign Corporation, Hong Kong Ecoaqua Co., Limited is one of the more focused assignees in the PatentsView dataset. By volume, Hong sits between Harpoon Therapeutics, Inc. (23 patents, rank #12,967) and IEX Group, Inc. (23 patents, rank #12,975) - the closest US assignees by grant volume. The composite Innovation Score of 17.1/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 1 grants, compared with 22 in the 2015–2019 window, a -95% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Hong Kong Ecoaqua Co., Limited's 1.9 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 2 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Who files at Hong's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Hong holds 23 patents at rank #12,971, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Hong

By rank, the assignees closest to #12,971 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

Hong's Innovation Score vs. every tracked assignee

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

17 Top 96% higher than 4% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). This entry sits in this band. 20–30: 13,162 US assignees (26%). Above this entry. 30–40: 15,294 US assignees (31%). Above this entry. 40–50: 11,491 US assignees (23%). Above this entry. 50–60: 5,058 US assignees (10%). Above this entry. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

051015 2017201820192020 1
USPTO utility patent grants by year · 2017–2020

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table
Hong Kong Ecoaqua Co., Limited patent grants by year, 2015–2025
Year Patents Granted Share of Period
2017 14 60.9%
2018 3 13.0%
2019 5 21.7%
2020 1 4.3%

Which technologies does Hong Kong Ecoaqua Co., Limited patent most?

Top 2 of 2 technology areas

Where it ranks

Overall rank by patents

#12,971

of 50,000 tracked assignees

Innovation Score

17.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?
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

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.