USPTO 2015–2025 USPTO PatentsView Foreign Corporation

SAN FANG Chemical Industry Co., Ltd.

USPTO PatentsView assignee record - 31 granted patents across 25 technology areas, active 2015–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B32B (LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM).

31
Total patents granted
25
CPC technology areas
7.9
Avg claims per patent
-6%
5-year filing velocity

The verdict

SAN holds 31 US patents across 25 technology areas, rank #10,164 of 50,000 tracked assignees.

#10,164
of 50,000 US assignees by volume
Top 30%
by Innovation Score (42.7/100)
7.9
avg claims per patent
-6%
filing velocity, last 5 yrs

Portfolio overview

SAN FANG CHEMICAL INDUSTRY CO., LTD. has been granted 31 US utility patents between 2015 and 2024, placing SAN FANG CHEMICAL INDUSTRY CO., LTD. at rank #10,164 across all assignees tracked by PlainPatent. This portfolio spans 25 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.9 claims per patent with primary concentration in B32B (LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM). As a Foreign Corporation, SAN FANG CHEMICAL INDUSTRY CO., LTD. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 42.7/100 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 15 grants, compared with 16 in the 2015–2019 window, a -6% 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. SAN FANG CHEMICAL INDUSTRY CO., LTD.'s 7.9 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 25 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark SAN FANG CHEMICAL INDUSTRY CO., LTD. against peers pursuing similar technology classes.

How does SAN compare?

Granted US patents 2015–2025 versus the largest corporate holders, this company marked ◀

patents

What this shows SAN holds 31 patents, placing it at rank #10,164 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

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

SAN's Innovation Score vs. every tracked assignee

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

43 Top 30% higher than 70% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). This entry sits in this band. 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

USPTO utility patent grants by year · 2015–2024

02468 2015201620172018201920202021202220232024 6
USPTO utility patent grants by year · 2015–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table
SAN FANG CHEMICAL INDUSTRY CO., LTD. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 2 6.5%
2016 1 3.2%
2017 3 9.7%
2018 7 22.6%
2019 3 9.7%
2020 3 9.7%
2021 2 6.5%
2022 1 3.2%
2023 3 9.7%
2024 6 19.4%

Which technologies does SAN FANG CHEMICAL INDUSTRY CO., LTD. patent most?

Top 15 of 25 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Simple
Velocity Declining

Where it ranks

Overall rank by patents

#10,164

Across all tracked assignees

Innovation Score

42.7 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 SAN FANG CHEMICAL INDUSTRY CO., LTD. hold?
SAN FANG CHEMICAL INDUSTRY CO., LTD. holds 31 US granted patents filed between 2015 and 2024, spanning 25 technology areas.
What is SAN FANG CHEMICAL INDUSTRY CO., LTD.'s Innovation Score?
SAN FANG CHEMICAL INDUSTRY CO., LTD. has an Innovation Score of 42.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does SAN FANG CHEMICAL INDUSTRY CO., LTD. focus on?
SAN FANG CHEMICAL INDUSTRY CO., LTD.'s top technology area is B32B (LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM) with 15 patents. The company has filed patents in 25 CPC subclasses total.
Is SAN FANG CHEMICAL INDUSTRY CO., LTD.'s patent filing rate increasing or decreasing?
SAN FANG CHEMICAL INDUSTRY CO., LTD.'s recent filing velocity is -6% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for SAN FANG CHEMICAL INDUSTRY CO., LTD.'s patents?
SAN FANG CHEMICAL INDUSTRY CO., LTD.'s patents average 7.9 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the SAN FANG CHEMICAL INDUSTRY 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.

Learn More

How to use this portfolio

SAN's 31 grants land it in the top 30% 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 - SAN ranks #10,164 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in B32B - see who else leads that technology area. B32B 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.

Explore the patent dataset

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.

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