Where does Hongzhou Sweet I&E Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hongzhou Sweet I&E Co., Ltd. ranks #26,486 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Hongzhou Sweet I&E Co., Ltd. hold?

Hongzhou Sweet I&E Co., Ltd. holds 10 US utility patents granted between 2021 and 2024, spanning 2 technology areas.

What is Hongzhou Sweet I&E Co., Ltd.'s Innovation Score?

Hongzhou Sweet I&E Co., Ltd. has an Innovation Score of 29.7 out of 100 (top 68% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hongzhou Sweet I&E Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Hongzhou Sweet I&E Co., Ltd..

What does claim depth mean for Hongzhou Sweet I&E Co., Ltd.'s patents?

Hongzhou Sweet I&E Co., Ltd.'s patents average 1.4 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 Hongzhou Sweet I&E 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hongzhou Sweet I&E Co., Ltd.

Q: What technology areas does Hongzhou Sweet I&E Co., Ltd. focus on?

Hongzhou Sweet I&E Co., Ltd.'s top technology area is F16L (PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL) with 1 patents. Grants appear in 2 CPC subclasses total.

USPTO PatentsView assignee record - 10 granted patents across 2 technology areas, recorded in grant years 2021–2024. 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: F16L (PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Hongzhou ranks #26,486 of 50,000 tracked US assignees by granted-patent volume, with 10 patents across 2 technology areas.

#26,486
of 50,000 US assignees by volume: Top 68%
by Innovation Score (29.7/100): 1.4
avg claims per patent

USPTO PatentsView assignee plate

Corpus R26486 · Foreign Corporation #26,486 · 10 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 10 grants
MID-PACK #26,486/50,000
PHOTO-FINISH Hinterkopf
CPC-NARROW F16L · 2 areas
INNOV-THIN 29.7/100
CLAIMS-SPARSE 1.4 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2024 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Hinterkopf Gmbh (±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.

Qualcomm Incorporated · highest

85
Hongzhou Sweet I&E · this assignee

30
3D Lighting Innovati… · lowest

7

What this shows Hongzhou's Innovation Score is 29.7/100 (top 68% 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.

Where Hongzhou's grants concentrate

Hongzhou Sweet I&E Co., Ltd. is a focused PatentsView assignee: 2 CPC subclasses with 10% of grants classified under F16L (PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL). Peak complete grant year is 2021 (3 grants) versus a trough of 2 in 2022. By volume, Hongzhou sits between Hinterkopf Gmbh and Huizhou Haorul Hardware Technology Co., Ltd..

Hongzhou's three-year grant acceleration

Hongzhou Sweet I&E Co., Ltd. shows 7 grants in 2022–2024 against only 3 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Hinterkopf

10
Histogenics

10
Hive Streaming AB

10
Hodge Products

10
Hub Pen

10
Hubble Network

10
Hugel

10
Huizhou Haorul Ha…

10
Hongzhou Sweet I&E ◀

10

What this shows Hongzhou holds 10 patents at rank #26,491, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hongzhou

By rank, the assignees closest to #26,491 in granted patent volume.

Leaders in F16L (Pipes)

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

Hongzhou's Innovation Score vs. every tracked assignee

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

30 Top 68% higher than 32% 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 · 2021–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Hongzhou Sweet I&E Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	3	30.0%
2022	2	20.0%
2023	3	30.0%
2024	2	20.0%

Which technologies does Hongzhou Sweet I&E Co., Ltd. patent most?

F16L - PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL 1

B60R - VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR 1

Top 2 of 2 technology areas

Where it ranks

Overall rank by patents

#26,486

of 50,000 tracked assignees

Innovation Score

29.7 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

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.