Where does Walter R. Tucker Enterprises, Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Walter R. Tucker Enterprises, Ltd ranks #8,146 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 Walter R. Tucker Enterprises, Ltd hold?

Walter R. Tucker Enterprises, Ltd holds 40 US utility patents granted between 2016 and 2025, spanning 12 technology areas.

What is Walter R. Tucker Enterprises, Ltd's Innovation Score?

Walter R. Tucker Enterprises, Ltd has an Innovation Score of 38.9 out of 100 (top 40% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Walter R. Tucker Enterprises, Ltd's patent grant rate increasing or decreasing?

Walter R. Tucker Enterprises, Ltd's recent grant velocity is +33% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Walter R. Tucker Enterprises, Ltd's patents?

Walter R. Tucker Enterprises, Ltd's patents average 9.2 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 Walter R. Tucker Enterprises, 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 US Corporation

Walter R. Tucker Enterprises, Ltd

Q: What technology areas does Walter R. Tucker Enterprises, Ltd focus on?

Walter R. Tucker Enterprises, Ltd's top technology area is F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted) with 16 patents, ranking #122 of 1,359 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 40 granted patents across 12 technology areas, recorded in grant years 2016–2025. 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: F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Walter ranks #8,146 of 49,997 tracked US assignees by granted-patent volume, with 40 patents across 12 technology areas.

#8,146
of 49,997 US assignees by volume: Top 40%
by Innovation Score (38.9/100): 9.2
avg claims per patent: +33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8146 · US Corporation #8,146 · 40 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-USCORP · VEL-UP · BOOK-FULL

GRANTS-SMALL 40 grants
UPPER-Q #8,146/49,997
PHOTO-FINISH Vector Products
CPC-FOCUS F21Y · 12 areas
INNOV-THIN 38.9/100
CLAIMS-PAR 9.2 claims/avg
TYPE-USCORP US Corporation
VEL-UP +33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Vector Products, 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 Walter’s 38.9 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 12.8 pts (33%) Velocity 8.3 pts (21%) Breadth 12.2 pts (31%) Claim depth 5.5 pts (14%)

Qualcomm Incorporated · highest

85
Advanced Cardiovascu… · near

39
American Lithium… · near

39
Arisaka · near

39
Hoganas AB (PUBL) · near

39
Walter R Tucker… · this assignee

39
3D Lighting… · lowest

7

What this shows Walter's Innovation Score is 38.9/100 (top 40% 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 Walter?

Each dot is one of Walter’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). Walter’s own 9.2 claims/patent is ABOVE the 6.9 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Walter's grants concentrate

Walter R. Tucker Enterprises, Ltd is a focused PatentsView assignee: 12 CPC subclasses with 40% of grants classified under F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted). Peak complete grant year is 2019 (7 grants) versus a trough of 2 in 2017. By volume, Walter sits between Vector Products, Inc. and Zing Semiconductor Corporation.

Walter's three-year grant acceleration

Walter R. Tucker Enterprises, Ltd shows 15 grants in 2022–2024 against only 12 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.

Vector Products

40
Velocys

40
Veran Medical

40
Volta Charging

40
X-card Holdings

40
Zojirushi

40
Zepp

40
Zing Semiconductor

40
Walter R Tucker E… ◀

40

What this shows Walter holds 40 patents at rank #8,144, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Walter

By rank, the assignees closest to #8,144 in granted patent volume.

Leaders in F21Y (Indexing Scheme Associated With Subclasses F21k)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Walter, neither rank-band nor same-CPC leaders (those blocks stay above). In F21Y (Indexing Scheme Associated With Subclasses F21k), Walter ranks #122 of 1,359 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (39 here).

Arisaka LLC 39 American Lithium Energy Corporation 39 Advanced Cardiovascular Systems, Inc. 39 Hoganas AB (PUBL) 39

Walter's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Walter R. Tucker Enterprises, Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	3	7.5%
2017	2	5.0%
2018	3	7.5%
2019	7	17.5%
2020	2	5.0%
2021	3	7.5%
2022	6	15.0%
2023	5	12.5%
2024	4	10.0%
2025partial year	5	12.5%

Which technologies does Walter R. Tucker Enterprises, Ltd patent most?

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 16

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 16

F21L - Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation 14

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 4

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 3

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems 3

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 2

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 2

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 2

B25F - Combination OR Multi-purpose Tools NOT Otherwise Provided FOR; Details OR Components OF Portable Power-driven Tools NOT Particularly Related TO THE Operations Performed AND NOT Otherwise Provided FOR 2

B25H - Workshop Equipment, e.g. FOR Marking-out WORK; Storage Means FOR Workshops 2

G02B - Optical Elements, Systems OR Apparatus 1

Top 12 of 12 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

Walter R. Tucker Enterprises, Ltd's patent record in context - here's where to go next.

Walter R. Tucker Enterprises, Ltd's lead technology class is F21Y (Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted), 40% of its portfolio - see every assignee active in that class. Explore F21Y
Ranked #8,146 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Walter R. Tucker Enterprises, Ltd against Vector Products, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.9/100 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.