Where does Nelumbo Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nelumbo Inc. ranks #23,061 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 Nelumbo Inc. hold?

Nelumbo Inc. holds 12 US utility patents granted between 2021 and 2025, spanning 15 technology areas.

What is Nelumbo Inc.'s Innovation Score?

Nelumbo Inc. has an Innovation Score of 52.7 out of 100 (top 10% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nelumbo Inc. focus on?

Nelumbo Inc.'s top technology area is F28F (Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application) with 11 patents, ranking #68 of 794 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is Nelumbo Inc.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Nelumbo Inc..

What does claim depth mean for Nelumbo Inc.'s patents?

Nelumbo Inc.'s patents average 16.9 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 Nelumbo Inc. 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 US Corporation

Nelumbo Inc.

USPTO PatentsView assignee record - 12 granted patents across 15 technology areas, recorded in grant years 2021–2025. 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: F28F (Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Nelumbo ranks #23,061 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 15 technology areas.

#23,061
of 49,997 US assignees by volume: Top 10%
by Innovation Score (52.7/100): 16.9
avg claims per patent

USPTO PatentsView assignee plate

Corpus R23061 · US Corporation #23,061 · 12 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 12 grants
MID-PACK #23,061/49,997
PHOTO-FINISH Natcore Technology
CPC-FOCUS F28F · 15 areas
INNOV-PAR 52.7/100
CLAIMS-RICH 16.9 claims/avg
TYPE-USCORP US Corporation
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Natcore Technology, 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 Nelumbo’s 52.7 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 8.9 pts (17%) Velocity 20.0 pts (38%) Breadth 13.7 pts (26%) Claim depth 10.2 pts (19%)

Qualcomm Incorporated · highest

85
Construction… · near

53
Nelumbo · this assignee

53
Ozyegin Universitesi · near

53
Paper Converting… · near

53
University OF Malta · near

53
3D Lighting… · lowest

7

What this shows Nelumbo's Innovation Score is 52.7/100 (top 10% 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 Nelumbo?

Each dot is one of Nelumbo’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). Nelumbo’s own 16.9 claims/patent is ABOVE the 10.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Nelumbo's grants concentrate

Nelumbo Inc. is a focused PatentsView assignee: 15 CPC subclasses with 91.7% of grants classified under F28F (Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application). Peak complete grant year is 2022 (4 grants) versus a trough of 1 in 2021. By volume, Nelumbo sits between Natcore Technology, Inc. and Nexgen Storage, Inc..

Nelumbo's three-year grant acceleration

Nelumbo Inc. shows 8 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.

Natcore Technology

12
Naver Cloud

12
NBC Meshtec

12
NEC Space

12
Neura Robotics

12
Neuralstem

12
Nexen Energy ULC

12
Nexgen Storage

12
Nelumbo ◀

12

What this shows Nelumbo holds 12 patents at rank #23,034, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nelumbo

By rank, the assignees closest to #23,034 in granted patent volume.

Leaders in F28F (Details OF Heat-exchange AND Heat-transfer Apparatus)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Nelumbo, neither rank-band nor same-CPC leaders (those blocks stay above). In F28F (Details OF Heat-exchange AND Heat-transfer Apparatus), Nelumbo ranks #68 of 794 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (53 here).

University OF Malta 53 Ozyegin Universitesi 53 Paper Converting Machine Company 53 Construction Research & Technology GMBH 53

Nelumbo's Innovation Score vs. every tracked assignee

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

53 Top 10% higher than 90% 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 · 2021–2025

Grants by year

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

View data table

Nelumbo Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	8.3%
2022	4	33.3%
2023	2	16.7%
2024	2	16.7%
2025partial year	3	25.0%

Which technologies does Nelumbo Inc. patent most?

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 11

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 9

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 7

B05D - Processes FOR Applying Fluent Materials TO Surfaces, IN General 6

C03C - Chemical Composition OF Glasses, Glazes OR Vitreous ENAMELS; Surface Treatment OF GLASS; Surface Treatment OF Fibres OR Filaments Made From Glass, Minerals OR SLAGS; Joining Glass TO Glass OR Other Materials 6

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 3

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 3

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 3

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 2

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 2

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 2

D06M - Treatment, NOT Provided FOR Elsewhere IN Class D06, OF Fibres, Threads, Yarns, Fabrics, Feathers OR Fibrous Goods Made From Such Materials 2

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 2

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 1

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 1

Top 15 of 15 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

Nelumbo Inc.'s patent record in context - here's where to go next.

Nelumbo Inc.'s lead technology class is F28F (Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application), 91.7% of its portfolio - see every assignee active in that class. Explore F28F
Ranked #23,061 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nelumbo Inc. against Natcore Technology, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 52.7/100 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.