Where does Sichuan Honghua Petroleum Equipment Co., Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sichuan Honghua Petroleum Equipment Co., Ltd ranks #30,133 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Sichuan Honghua Petroleum Equipment Co., Ltd hold?

Sichuan Honghua Petroleum Equipment Co., Ltd holds 9 US utility patents granted between 2015 and 2025, spanning 10 technology areas.

What is Sichuan Honghua Petroleum Equipment Co., Ltd's Innovation Score?

Sichuan Honghua Petroleum Equipment Co., Ltd has an Innovation Score of 48.5 out of 100 (top 16% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Sichuan Honghua Petroleum Equipment Co., Ltd's patent grant rate increasing or decreasing?

Sichuan Honghua Petroleum Equipment Co., Ltd's recent grant velocity is +500% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Sichuan Honghua Petroleum Equipment Co., Ltd's patents?

Sichuan Honghua Petroleum Equipment Co., Ltd's patents average 15.7 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Sichuan Honghua Petroleum Equipment Co., Ltd

Q: What technology areas does Sichuan Honghua Petroleum Equipment Co., Ltd focus on?

Sichuan Honghua Petroleum Equipment Co., Ltd's top technology area is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells) with 8 patents, ranking #449 of 1,363 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

Q: How is the Sichuan Honghua Petroleum Equipment 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 PatentsView assignee record - 9 granted patents across 10 technology areas, recorded in grant years 2015–2025. 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: E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sichuan ranks #30,133 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 10 technology areas.

#30,133
of 49,997 US assignees by volume: Top 16%
by Innovation Score (48.5/100): 15.7
avg claims per patent: +500%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R30133 · Foreign Corporation #30,133 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 9 grants
MID-PACK #30,133/49,997
PHOTO-FINISH Shore Acres…
CPC-FOCUS E21B · 10 areas
INNOV-PAR 48.5/100
CLAIMS-RICH 15.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +500% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Shore Acres Enterprises 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 Sichuan’s 48.5 Innovation Score adds up

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

Volume 8.0 pts (16%) Velocity 20.0 pts (41%) Breadth 11.2 pts (23%) Claim depth 9.4 pts (19%)

Qualcomm Incorporated · highest

85
Sichuan Honghua… · this assignee

49
3D Lighting… · lowest

7

What this shows Sichuan's Innovation Score is 48.5/100 (top 16% 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.

Does more volume mean deeper claims for Sichuan?

Each dot is one of Sichuan’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). Sichuan’s own 15.7 claims/patent is ABOVE the 13.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Sichuan vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Sichuan's grants concentrate

Sichuan Honghua Petroleum Equipment Co., Ltd is a focused PatentsView assignee: 10 CPC subclasses with 88.9% of grants classified under E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells). Peak complete grant year is 2022 (2 grants) versus a trough of 1 in 2015. By volume, Sichuan sits between Shore Acres Enterprises Inc. and Silicon Holding B.V..

Sichuan's three-year grant acceleration

Sichuan Honghua Petroleum Equipment Co., Ltd shows 5 grants in 2022–2024 against only 1 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.

Shore Acres Enter…

9
Shunyun Technolog…

9
Shurtech Brands

9
Sichuan Haisco Ph…

9
Sidel Canada

9
Sidel SPA

9
Silcart SPA

9
Silicon Holding B…

9
Sichuan Honghua P… ◀

9

What this shows Sichuan holds 9 patents at rank #30,042, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sichuan

By rank, the assignees closest to #30,042 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Sichuan's Innovation Score vs. every tracked assignee

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

49 Top 16% higher than 84% of 49,997 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

Sichuan Honghua Petroleum Equipment Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	11.1%
2021	1	11.1%
2022	2	22.2%
2023	1	11.1%
2024	2	22.2%
2025partial year	2	22.2%

Which technologies does Sichuan Honghua Petroleum Equipment Co., Ltd patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 8

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 1

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 1

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

B66D - CAPSTANS; WINCHES; Tackles, e.g. Pulley BLOCKS; Hoists 1

B66C - CRANES; Load-engaging Elements OR Devices FOR Cranes, Capstans, Winches, OR Tackles 1

E04H - Buildings OR Like Structures FOR Particular PURPOSES; Swimming OR Splash Baths OR POOLS; MASTS; FENCING; Tents OR Canopies, IN General 1

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 1

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

Top 10 of 10 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

Sichuan Honghua Petroleum Equipment Co., Ltd's patent record in context - here's where to go next.

Sichuan Honghua Petroleum Equipment Co., Ltd's lead technology class is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells), 88.9% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #30,133 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sichuan Honghua Petroleum Equipment Co., Ltd against Shore Acres Enterprises Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 48.5/100 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

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.