Where does Chapman/Leonard Studio Equipment, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chapman/Leonard Studio Equipment, Inc. ranks #15,897 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 Chapman/Leonard Studio Equipment, Inc. hold?

Chapman/Leonard Studio Equipment, Inc. holds 18 US utility patents granted between 2015 and 2022, spanning 18 technology areas.

What is Chapman/Leonard Studio Equipment, Inc.'s Innovation Score?

Chapman/Leonard Studio Equipment, Inc. has an Innovation Score of 42.5 out of 100 (top 30% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Chapman/Leonard Studio Equipment, Inc.'s patent grant rate increasing or decreasing?

Chapman/Leonard Studio Equipment, Inc.'s recent grant velocity is -62% 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 Chapman/Leonard Studio Equipment, Inc.'s patents?

Chapman/Leonard Studio Equipment, Inc.'s patents average 12.2 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 Chapman/Leonard Studio Equipment, 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

Chapman/Leonard Studio Equipment, Inc.

Q: What technology areas does Chapman/Leonard Studio Equipment, Inc. focus on?

Chapman/Leonard Studio Equipment, Inc.'s top technology area is F16M (Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports) with 13 patents, ranking #34 of 1,330 assignees active in that subclass. Grants appear in 18 CPC subclasses total.

USPTO PatentsView assignee record - 18 granted patents across 18 technology areas, recorded in grant years 2015–2022. 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: F16M (Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Chapman/leonard ranks #15,897 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 18 technology areas.

#15,897
of 49,997 US assignees by volume: Top 30%
by Innovation Score (42.5/100): 12.2
avg claims per patent: -62%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15897 · US Corporation #15,897 · 18 grants

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

GRANTS-MICRO 18 grants
MID-PACK #15,897/49,997
PHOTO-FINISH Century Plastics
CPC-FOCUS F16M · 18 areas
INNOV-PAR 42.5/100
CLAIMS-RICH 12.2 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -62% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Century Plastics, LLC (±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 Chapman/leonard’s 42.5 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 10.2 pts (24%) Velocity 10.0 pts (24%) Breadth 15.0 pts (35%) Claim depth 7.3 pts (17%)

Qualcomm Incorporated · highest

85
Chapman/Leonard… · this assignee

42
3D Lighting… · lowest

7

What this shows Chapman/leonard's Innovation Score is 42.5/100 (top 30% 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 Chapman/leonard?

Each dot is one of Chapman/leonard’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). Chapman/leonard’s own 12.2 claims/patent is ABOVE the 9.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Chapman/leonard's grants concentrate

Chapman/Leonard Studio Equipment, Inc. is a focused PatentsView assignee: 18 CPC subclasses with 72.2% of grants classified under F16M (Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports). Peak complete grant year is 2015 (5 grants) versus a trough of 1 in 2017. By volume, Chapman/leonard sits between Century Plastics, LLC and Climax Technology Co., Ltd..

Chapman/leonard's three-year grant acceleration

Chapman/Leonard Studio Equipment, Inc. shows 3 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.

Century Plastics

18
Ceva D S P

18
Changzhou Globe

18
Changzhou Jutal

18
Cheer Pack North…

18
China Medical Uni…

18
Ciphercloud

18
Climax Technology

18
Chapman/Leonard S… ◀

18

What this shows Chapman/Leonard holds 18 patents at rank #15,922, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chapman/Leonard

By rank, the assignees closest to #15,922 in granted patent volume.

Leaders in F16M (Frames)

Other assignees with the most granted patents in Chapman/Leonard's primary technology class.

Chapman/leonard's Innovation Score vs. every tracked assignee

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

42 Top 30% higher than 70% 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 · 2015–2022

Grants by year

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

View data table

Chapman/Leonard Studio Equipment, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	27.8%
2016	4	22.2%
2017	1	5.6%
2018	3	16.7%
2020	1	5.6%
2021	1	5.6%
2022	3	16.7%

Which technologies does Chapman/Leonard Studio Equipment, Inc. patent most?

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 13

B66F - Hoisting, Lifting, Hauling OR Pushing, NOT Otherwise Provided FOR, e.g. Devices Which Apply A Lifting OR Pushing Force Directly TO THE Surface OF A Load 12

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 9

B62B - Hand-propelled Vehicles, e.g. Hand Carts OR PERAMBULATORS; Sledges 4

B60P - Vehicles Adapted FOR Load Transportation OR TO Transport, TO Carry, OR TO Comprise Special Loads OR Objects 3

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 2

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 2

B62D - Motor VEHICLES; Trailers 2

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

B60F - Vehicles FOR USE Both ON Rail AND ON ROAD; Amphibious OR Like VEHICLES; Convertible Vehicles 1

H04N - Pictorial Communication, e.g. Television 1

G02B - Optical Elements, Systems OR Apparatus 1

Y10T - Technical Subjects Covered BY Former US Classification 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 1

Top 15 of 18 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

Chapman/Leonard Studio Equipment, Inc.'s patent record in context - here's where to go next.

Chapman/Leonard Studio Equipment, Inc.'s lead technology class is F16M (Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports), 72.2% of its portfolio - see every assignee active in that class. Explore F16M
Ranked #15,897 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chapman/Leonard Studio Equipment, Inc. against Century Plastics, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.5/100 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.