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).

RSS updates for this company
Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hong ranks #12,971 of 49,997 tracked US assignees by granted-patent volume, with 23 patents across 2 technology areas.

#12,971
of 49,997 US assignees by volume
4th percentile
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 #12,971/49,997
  • 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.

How Hong’s 17.1 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

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's Innovation Score is 17.1/100 (4th 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.

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

Does more volume mean deeper claims for Hong?

Each dot is one of Hong’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). Hong’s own 1.9 claims/patent is at or below the 17.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Hong vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 22.922.92323.1 0102030 Granted patents (volume) Avg claims / patent Harpoon Therapeutics, Inc. - 23, 18.26Harpoon Therapeut…Heraeus Medical Components LLC - 23, 15.91Heraeus Medical C…Hipmunk, Inc. - 23, 17.91HipmunkHitachi Data Systems Engineering UK Limited - 23, 27.39Hitachi Data Syst…Hop Breeding Company, L.L.C. - 23, 1Hop Breeding L L CHyland Software, Inc. - 23, 18.83Hyland SoftwareIchikawa Co., Ltd. - 23, 10.65IchikawaIEX Group, Inc. - 23, 21.65IEX GroupHong Kong Ecoaqua Co., Limited - 23, 1.87Hong Kong Ecoaqua
Hong vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Hong's grants concentrate

Hong Kong Ecoaqua Co., Limited is a focused PatentsView assignee: 2 CPC subclasses with 4.3% of grants classified under C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge). Peak complete grant year is 2017 (14 grants) versus a trough of 1 in 2020. By volume, Hong sits between Harpoon Therapeutics, Inc. and IEX Group, Inc..

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 4th percentile higher than 4% of 49,997 US assignees

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

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

Hong Kong Ecoaqua Co., Limited's patent record in context - here's where to go next.

  • Hong Kong Ecoaqua Co., Limited's lead technology class is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge), 4.3% of its portfolio - see every assignee active in that class. Explore C02F
  • Ranked #12,971 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Hong Kong Ecoaqua Co., Limited against Harpoon Therapeutics, Inc., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 17.1/100 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

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.