Where does LDC Precision Engineering Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), LDC Precision Engineering Co., Ltd. ranks #41,374 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 LDC Precision Engineering Co., Ltd. hold?

LDC Precision Engineering Co., Ltd. holds 6 US utility patents granted between 2021 and 2024, spanning 5 technology areas.

What is LDC Precision Engineering Co., Ltd.'s Innovation Score?

LDC Precision Engineering Co., Ltd. has an Innovation Score of 32.3 out of 100 (41st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is LDC Precision Engineering Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for LDC Precision Engineering Co., Ltd..

What does claim depth mean for LDC Precision Engineering Co., Ltd.'s patents?

LDC Precision Engineering Co., Ltd.'s patents average 7.2 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 LDC Precision Engineering 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

LDC Precision Engineering Co., Ltd.

Q: What technology areas does LDC Precision Engineering Co., Ltd. focus on?

LDC Precision Engineering Co., Ltd.'s top technology area is F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact) with 5 patents. Grants appear in 5 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 5 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: F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, LDC ranks #41,374 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 5 technology areas.

#41,374
of 49,997 US assignees by volume: 41st percentile
by Innovation Score (32.3/100): 7.2
avg claims per patent

USPTO PatentsView assignee plate

Corpus R41374 · Foreign Corporation #41,374 · 6 grants

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

GRANTS-MICRO 6 grants
LOWER-Q #41,374/49,997
PHOTO-FINISH Lbsemicon
CPC-NARROW F28D · 5 areas
INNOV-THIN 32.3/100
CLAIMS-SPARSE 7.2 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2024 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Lbsemicon Co., Ltd. (±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
LDC Precision… · this assignee

32
3D Lighting… · lowest

7

What this shows LDC's Innovation Score is 32.3/100 (41st 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.

Where LDC's grants concentrate

LDC Precision Engineering Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 83.3% of grants classified under F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact). Peak complete grant year is 2021 (2 grants) versus a trough of 1 in 2023. By volume, LDC sits between Lbsemicon Co., Ltd. and Leading Edge Innovations, LLC.

LDC's three-year grant acceleration

LDC Precision Engineering Co., Ltd. shows 4 grants in 2022–2024 against only 2 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.

Lbsemicon

6
LBT Innovations

6
LC Therapeutics

6
LDA

6
LDN Pharma

6
Leach Internation…

6
Lead

6
Leading Edge Inno…

6
LDC Precision Eng… ◀

6

What this shows LDC holds 6 patents at rank #41,325, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near LDC

By rank, the assignees closest to #41,325 in granted patent volume.

Leaders in F28D (Heat-exchange Apparatus)

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

LDC's Innovation Score vs. every tracked assignee

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

32 41st percentile higher than 41% 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 · 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

LDC Precision Engineering Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	2	33.3%
2022	2	33.3%
2023	1	16.7%
2024	1	16.7%

Which technologies does LDC Precision Engineering Co., Ltd. patent most?

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 5

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 5

H01L - Semiconductor Devices NOT Covered BY Class H10 4

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 3

Y02D - Climate Change Mitigation Technologies IN Information AND Communication Technologies [ICT], I.E. Information AND Communication Technologies Aiming AT THE Reduction OF Their OWN Energy USE 1

Top 5 of 5 technology areas

Where it ranks

Overall rank by patents

#41,374

of 49,997 tracked assignees

Innovation Score

32.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

LDC Precision Engineering Co., Ltd.'s patent record in context - here's where to go next.

LDC Precision Engineering Co., Ltd.'s lead technology class is F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact), 83.3% of its portfolio - see every assignee active in that class. Explore F28D
Ranked #41,374 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare LDC Precision Engineering Co., Ltd. against Lbsemicon Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 32.3/100 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.