USPTO 2015–2025 USPTO PatentsView US Corporation

Sigma Electric Manufacturing Corporation

USPTO PatentsView assignee record - 10 granted patents across 9 technology areas, active 2016–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H02G (INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

18.5

Avg claims per patent

+0%

5-year filing velocity

The verdict

Sigma holds 10 US patents across 9 technology areas, rank #27,349 of 50,000 tracked assignees.

#27,349
of 50,000 US assignees by volume: Top 62%
by Innovation Score (31.7/100): 18.5
avg claims per patent: +0%
filing velocity, last 5 yrs

Portfolio overview

Sigma Electric Manufacturing Corporation has been granted 10 US utility patents between 2016 and 2023, placing Sigma Electric Manufacturing Corporation at rank #27,349 across all assignees tracked by PlainPatent. This portfolio spans 9 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.5 claims per patent with primary concentration in H02G (INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES). As a US Corporation, Sigma Electric Manufacturing Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Sigma sits between Sichuan Energy Internet Research Institute, Tsinghua University (10 patents, rank #27,345) and Sinobioway Bio-agriculture Group Co Ltd (10 patents, rank #27,353) - the closest US assignees by grant volume. The composite Innovation Score of 31.7/100 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 5 grants, compared with 5 in the 2015–2019 window, a +0% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. Sigma Electric Manufacturing Corporation's 18.5 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 9 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Sigma Electric Manufacturing Corporation against peers pursuing similar technology classes.

Sichuan Energy In…

10
Sidekick Technolo…

10
Sienna Group

10
Sightline Innovat…

10
Signablok

10
Signifi Solutions

10
Silitek (Dongguan)

10
Sinobioway Bio-ag…

10
Sigma Electric Ma… ◀

10

What this shows Sigma holds 10 patents at rank #27,349, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sigma

By rank, the assignees closest to #27,349 in granted patent volume.

Leaders in H02G (Installation OF Electric Cables OR Lines)

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

Sigma's Innovation Score vs. every tracked assignee

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

32 Top 62% higher than 38% of 50,000 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 · 2016–2023

Grants by year

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

View data table

Sigma Electric Manufacturing Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	4	40.0%
2018	1	10.0%
2020	3	30.0%
2021	1	10.0%
2023	1	10.0%

Which technologies does Sigma Electric Manufacturing Corporation patent most?

H02G - INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES 8

F16L - PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL 2

H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1

F21W - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS 1

F21S - NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS 1

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

F16C - SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 1

Top 9 of 9 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Growing

Where it ranks

Overall rank by patents

#27,349

Across all tracked assignees

Innovation Score

31.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Sigma Electric Manufacturing Corporation hold?

Sigma Electric Manufacturing Corporation holds 10 US granted patents filed between 2016 and 2023, spanning 9 technology areas.

What is Sigma Electric Manufacturing Corporation's Innovation Score?

Sigma Electric Manufacturing Corporation has an Innovation Score of 31.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sigma Electric Manufacturing Corporation focus on?

Sigma Electric Manufacturing Corporation's top technology area is H02G (INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES) with 8 patents. The company has filed patents in 9 CPC subclasses total.

Is Sigma Electric Manufacturing Corporation's patent filing rate increasing or decreasing?

Sigma Electric Manufacturing Corporation's recent filing velocity is +0% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for Sigma Electric Manufacturing Corporation's patents?

Sigma Electric Manufacturing Corporation's patents average 18.5 claims each. This falls within the standard range, providing solid legal coverage.

How is the Sigma Electric Manufacturing Corporation 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.

How to use this portfolio

Sigma's 10 grants land it in the top 62% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Sigma ranks #27,349 of 50,000. Top 50 holders
Most of this portfolio concentrates in H02G - see who else leads that technology area. H02G leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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.

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team

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.