Where does Prince Lionheart, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Prince Lionheart, Inc. ranks #37,064 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 Prince Lionheart, Inc. hold?

Prince Lionheart, Inc. holds 7 US utility patents granted between 2015 and 2019, spanning 7 technology areas.

What is Prince Lionheart, Inc.'s Innovation Score?

Prince Lionheart, Inc. has an Innovation Score of 20.4 out of 100 (7th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Prince Lionheart, Inc.'s patent grant rate increasing or decreasing?

Prince Lionheart, Inc.'s recent grant velocity is -100% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Prince Lionheart, Inc.'s patents?

Prince Lionheart, Inc.'s patents average 6.4 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 Prince Lionheart, 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

Prince Lionheart, Inc.

Q: What technology areas does Prince Lionheart, Inc. focus on?

Prince Lionheart, Inc.'s top technology area is E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks) with 1 patents. Grants appear in 7 CPC subclasses total.

USPTO PatentsView assignee record - 7 granted patents across 7 technology areas, recorded in grant years 2015–2019. 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: E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Prince ranks #37,064 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 7 technology areas.

#37,064
of 49,997 US assignees by volume: 7th percentile
by Innovation Score (20.4/100): 6.4
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R37064 · US Corporation #37,064 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 7 grants
MID-PACK #37,064/49,997
PHOTO-FINISH PrimaryIO
CPC-NARROW E03C · 7 areas
INNOV-THIN 20.4/100
CLAIMS-SPARSE 6.4 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: PrimaryIO, 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.

Qualcomm Incorporated · highest

85
Prince Lionheart · this assignee

20
3D Lighting… · lowest

7

What this shows Prince's Innovation Score is 20.4/100 (7th 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 Prince's grants concentrate

Prince Lionheart, Inc. is a focused PatentsView assignee: 7 CPC subclasses with 14.3% of grants classified under E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks). Peak complete grant year is 2016 (3 grants) versus a trough of 1 in 2015. By volume, Prince sits between PrimaryIO, Inc. and ProAct Services Corporation.

Primaryio

7
Prime Equipment G…

7
Prime Research So…

7
Primewan

7
Prince Sultan Uni…

7
Priority 5 Holdin…

7
Pro Cell Therapies

7
Proact Services

7
Prince Lionheart ◀

7

What this shows Prince holds 7 patents at rank #37,062, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Prince

By rank, the assignees closest to #37,062 in granted patent volume.

Leaders in E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste…)

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

Prince's Innovation Score vs. every tracked assignee

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

20 7th percentile higher than 7% 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 · 2015–2019

Grants by year

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

View data table

Prince Lionheart, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	14.3%
2016	3	42.9%
2017	1	14.3%
2018	1	14.3%
2019	1	14.3%

Which technologies does Prince Lionheart, Inc. patent most?

E03C - Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks 1

Y10T - Technical Subjects Covered BY Former US Classification 1

B62K - CYCLES; Cycle FRAMES; Cycle Steering DEVICES; Rider-operated Terminal Controls Specially Adapted FOR CYCLES; Cycle Axle SUSPENSIONS; Cycle Side-cars, Forecars, OR THE Like 1

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 1

G06F - Electric Digital Data Processing 1

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy 1

A41D - OUTERWEAR; Protective GARMENTS; Accessories 1

Top 7 of 7 technology areas

Where it ranks

Overall rank by patents

#37,064

of 49,997 tracked assignees

Innovation Score

20.4 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

Prince Lionheart, Inc.'s patent record in context - here's where to go next.

Prince Lionheart, Inc.'s lead technology class is E03C (Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks), 14.3% of its portfolio - see every assignee active in that class. Explore E03C
Ranked #37,064 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Prince Lionheart, Inc. against PrimaryIO, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 20.4/100 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.