Where does Worldwide Oilfield Machine, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Worldwide Oilfield Machine, Inc. ranks #38,353 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 Worldwide Oilfield Machine, Inc. hold?

Worldwide Oilfield Machine, Inc. holds 7 US utility patents granted between 2015 and 2024, spanning 5 technology areas.

What is Worldwide Oilfield Machine, Inc.'s Innovation Score?

Worldwide Oilfield Machine, Inc. has an Innovation Score of 44.9 out of 100 (top 25% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Worldwide Oilfield Machine, Inc. focus on?

Worldwide Oilfield Machine, Inc.'s top technology area is F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating) with 3 patents, ranking #657 of 1,836 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

Is Worldwide Oilfield Machine, Inc.'s patent grant rate increasing or decreasing?

Worldwide Oilfield Machine, Inc.'s recent grant velocity is -25% 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 Worldwide Oilfield Machine, Inc.'s patents?

Worldwide Oilfield Machine, Inc.'s patents average 16.3 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 Worldwide Oilfield Machine, 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

Worldwide Oilfield Machine, Inc.

USPTO PatentsView assignee record - 7 granted patents across 5 technology areas, recorded in grant years 2015–2024. 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: F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Worldwide ranks #38,353 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 5 technology areas.

#38,353
of 49,997 US assignees by volume: Top 25%
by Innovation Score (44.9/100): 16.3
avg claims per patent: -25%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38353 · US Corporation #38,353 · 7 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 7 grants
LOWER-Q #38,353/49,997
PHOTO-FINISH Woosim System
CPC-NARROW F16K · 5 areas
INNOV-PAR 44.9/100
CLAIMS-RICH 16.3 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -25% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Woosim System 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 Worldwide’s 44.9 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 7.2 pts (16%) Velocity 20.0 pts (45%) Breadth 7.9 pts (18%) Claim depth 9.8 pts (22%)

Qualcomm Incorporated · highest

85
Worldwide Oilfield… · this assignee

45
3D Lighting… · lowest

7

What this shows Worldwide's Innovation Score is 44.9/100 (top 25% 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 Worldwide?

Each dot is one of Worldwide’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). Worldwide’s own 16.3 claims/patent is ABOVE the 10.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Worldwide's grants concentrate

Worldwide Oilfield Machine, Inc. is a focused PatentsView assignee: 5 CPC subclasses with 42.9% of grants classified under F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating). Peak complete grant year is 2018 (2 grants) versus a trough of 1 in 2015. By volume, Worldwide sits between Woosim System Inc. and Wuhan Zjzk Technology Co., Ltd..

Worldwide's three-year grant acceleration

Worldwide Oilfield Machine, Inc. shows 3 grants in 2022–2024 against only 0 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.

Woosim System

7
Woowa Brothers

7
Workshare Technol…

7
World Award Acade…

7
WPT

7
WRT LAB

7
WS-WÄRmeprozesste…

7
Wuhan Zjzk Techno…

7
Worldwide Oilfiel… ◀

7

What this shows Worldwide holds 7 patents at rank #38,279, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Worldwide

By rank, the assignees closest to #38,279 in granted patent volume.

Leaders in F16K (Valves)

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

Worldwide's Innovation Score vs. every tracked assignee

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

45 Top 25% higher than 75% 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 · 2015–2024

Grants by year

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

View data table

Worldwide Oilfield Machine, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	14.3%
2017	1	14.3%
2018	2	28.6%
2023	1	14.3%
2024	2	28.6%

Which technologies does Worldwide Oilfield Machine, Inc. patent most?

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 3

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 3

Y10T - Technical Subjects Covered BY Former US Classification 1

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 1

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 1

Top 5 of 5 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

Worldwide Oilfield Machine, Inc.'s patent record in context - here's where to go next.

Worldwide Oilfield Machine, Inc.'s lead technology class is F16K (VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating), 42.9% of its portfolio - see every assignee active in that class. Explore F16K
Ranked #38,353 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Worldwide Oilfield Machine, Inc. against Woosim System Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.9/100 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.