Where does Zilltek Technology (SHANGHAI) Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zilltek Technology (SHANGHAI) Corp. ranks #27,911 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 Zilltek Technology (SHANGHAI) Corp. hold?

Zilltek Technology (SHANGHAI) Corp. holds 10 US utility patents granted between 2015 and 2021, spanning 10 technology areas.

What is Zilltek Technology (SHANGHAI) Corp.'s Innovation Score?

Zilltek Technology (SHANGHAI) Corp. has an Innovation Score of 24.2 out of 100 (14th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Zilltek Technology (SHANGHAI) Corp.'s patent grant rate increasing or decreasing?

Zilltek Technology (SHANGHAI) Corp.'s recent grant velocity is +0% 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 Zilltek Technology (SHANGHAI) Corp.'s patents?

Zilltek Technology (SHANGHAI) Corp.'s patents average 7.9 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 Zilltek Technology (SHANGHAI) Corp. 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 Foreign Corporation

Zilltek Technology (SHANGHAI) Corp.

Q: What technology areas does Zilltek Technology (SHANGHAI) Corp. focus on?

Zilltek Technology (SHANGHAI) Corp.'s top technology area is H04R (Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems) with 10 patents. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 10 granted patents across 10 technology areas, recorded in grant years 2015–2021. 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: H04R (Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Zilltek ranks #27,911 of 49,997 tracked US assignees by granted-patent volume, with 10 patents across 10 technology areas.

#27,911
of 49,997 US assignees by volume: 14th percentile
by Innovation Score (24.2/100): 7.9
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R27911 · Foreign Corporation #27,911 · 10 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-MICRO 10 grants
MID-PACK #27,911/49,997
PHOTO-FINISH Zhengzhou Research…
CPC-FOCUS H04R · 10 areas
INNOV-THIN 24.2/100
CLAIMS-SPARSE 7.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Zhengzhou Research Institute OF Mechanical Engineering Co., Ltd. (±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.

Qualcomm Incorporated · highest

85
Zilltek Technology… · this assignee

24
3D Lighting… · lowest

7

What this shows Zilltek's Innovation Score is 24.2/100 (14th percentile 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.

Where Zilltek's grants concentrate

Zilltek Technology (SHANGHAI) Corp. is a focused PatentsView assignee: 10 CPC subclasses with 100% of grants classified under H04R (Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems). Peak complete grant year is 2020 (4 grants) versus a trough of 1 in 2015. By volume, Zilltek sits between Zhengzhou Research Institute OF Mechanical Engineering Co., Ltd. and ZTE (TX) Inc..

Zhengzhou Researc…

10
Zhongying Changji…

10
ZHU HAI Fuyun Lig…

10
Zhuhai Juntian Te…

10
Zinwave

10
Zodiac Aerosafety…

10
Zoller & FRÖHlich

10
ZTE (TX)

10
Zilltek Technolog… ◀

10

What this shows Zilltek holds 10 patents at rank #27,885, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zilltek

By rank, the assignees closest to #27,885 in granted patent volume.

Leaders in H04R (Loudspeakers)

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

Zilltek's Innovation Score vs. every tracked assignee

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

24 14th percentile higher than 14% 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 · 2015–2021

Grants by year

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

View data table

Zilltek Technology (SHANGHAI) Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	10.0%
2018	1	10.0%
2019	3	30.0%
2020	4	40.0%
2021	1	10.0%

Which technologies does Zilltek Technology (SHANGHAI) Corp. patent most?

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 10

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

H04B - Transmission 1

G06F - Electric Digital Data Processing 1

H01L - Semiconductor Devices NOT Covered BY Class H10 1

G10L - Speech Analysis Techniques OR Speech SYNTHESIS; Speech RECOGNITION; Speech OR Voice Processing TECHNIQUES; Speech OR Audio Coding OR Decoding 1

G10K - Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR 1

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 1

B81B - Microstructural Devices OR Systems, e.g. Micromechanical Devices 1

Top 10 of 10 technology areas

Where it ranks

Overall rank by patents

#27,911

of 49,997 tracked assignees

Innovation Score

24.2 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Zilltek Technology (SHANGHAI) Corp.'s patent record in context - here's where to go next.

Zilltek Technology (SHANGHAI) Corp.'s lead technology class is H04R (Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems), 100% of its portfolio - see every assignee active in that class. Explore H04R
Ranked #27,911 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zilltek Technology (SHANGHAI) Corp. against Zhengzhou Research Institute OF Mechanical Engineering Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 24.2/100 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.