Overall rank by patents
#1,927
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView US Corporation
The Charles Machine Works, Inc.
USPTO PatentsView assignee record — 209 granted patents across 59 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS).
209
Total patents granted
59
CPC technology areas
17.0
Avg claims per patent
+90%
5-year filing velocity
Portfolio overview
The Charles Machine Works, Inc. has been granted 209 US utility patents between 2015 and 2025, placing The Charles Machine Works, Inc. at rank #1,927 across all assignees tracked by PlainPatent. This portfolio spans 59 distinct Cooperative Patent Classification (CPC) subclasses, averaging 17.0 claims per patent with primary concentration in E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS). As a US Corporation, The Charles Machine Works, Inc. is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 59.6/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Filing cadence tells the strategic story. Between 2020 and 2025 the company received 137 grants, compared with 72 in the 2015–2019 window — a +90% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.
Claim depth and technology breadth together indicate competitive posture. The Charles Machine Works, Inc.'s 17.0 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 59 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark The Charles Machine Works, Inc. against peers pursuing similar technology classes.
How does The compare?
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
- Samsung
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
- International Bus…
International Business Machines Corporation
72,926 patents
- Canon 34,378
Canon Kabushiki Kaisha
34,378 patents
- LG 32,607
LG ELECTRONICS INC.
32,607 patents
- Taiwan Semiconduc… 31,041
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
- Apple 30,560
Apple Inc.
30,560 patents
- Qualcomm Incorpor… 30,354
QUALCOMM Incorporated
30,354 patents
- Intel 27,498
Intel Corporation
27,498 patents
- The Charles Machi… ◀ 209
The Charles Machine Works, Inc.
209 patents
What this shows The holds 209 patents — placing it at rank #1,927 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
USPTO utility patent grants by year · 2015–2025
Grants by year
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 8 | 3.8% |
| 2016 | 6 | 2.9% |
| 2017 | 21 | 10.0% |
| 2018 | 16 | 7.7% |
| 2019 | 21 | 10.0% |
| 2020 | 24 | 11.5% |
| 2021 | 30 | 14.4% |
| 2022 | 19 | 9.1% |
| 2023 | 26 | 12.4% |
| 2024 | 22 | 10.5% |
| 2025 | 16 | 7.7% |
Which technologies does The Charles Machine Works, Inc. patent most?
Top 15 of 59 technology areas
Patent Moat Analysis
Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Standard
Velocity Accelerating
Frequently Asked Questions
How many patents does The Charles Machine Works, Inc. hold?
The Charles Machine Works, Inc. holds 209 US granted patents filed between 2015 and 2025, spanning 59 technology areas.
What is The Charles Machine Works, Inc.'s Innovation Score?
The Charles Machine Works, Inc. has an Innovation Score of 59.6 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does The Charles Machine Works, Inc. focus on?
The Charles Machine Works, Inc.'s top technology area is E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS) with 107 patents. The company has filed patents in 59 CPC subclasses total.
Is The Charles Machine Works, Inc.'s patent filing rate increasing or decreasing?
The Charles Machine Works, Inc.'s recent filing velocity is +90% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for The Charles Machine Works, Inc.'s patents?
The Charles Machine Works, Inc.'s patents average 17.0 claims each. This falls within the standard range, providing solid legal coverage.
How is the The Charles Machine Works, 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.
Learn More
Explore the patent dataset
E21B technology
The Charles Machine Works, Inc.'s primary CPC class — all holders and yearly trends
Top 50 patent holders
See where The Charles Machine Works, Inc. ranks among the largest US patent assignees
All technology classes
Browse every CPC technology area by patent activity
How the score works
The four dimensions behind the Innovation Score
Related
Data sourced from USPTO PatentsView — official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial
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.
All federal data sources used on this page
- USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
- USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
- USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
- USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
- SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
- WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope
