Overall rank by patents
#23,720
of 50,000 tracked assignees
USPTO PatentsView assignee record - 12 granted patents across 8 technology areas, recorded in grant years 2016–2024. 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: G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS).
The verdict
According to USPTO PatentsView, Zhangjiagang ranks #23,720 of 50,000 tracked US assignees by granted-patent volume, with 12 patents across 8 technology areas.
USPTO PatentsView assignee plate
Corpus R23720 · Foreign Corporation #23,720 · 12 grants
GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-UP · BOOK-FULL
Nearest grant-volume peer: Yum Connect, Llc (±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.
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
Qualcomm Incorporated · highest
85 score
Zhangjiagang Kangde… · this assignee
33 score
3D Lighting Innovati… · lowest
7 score
What this shows Zhangjiagang's Innovation Score is 33.5/100 (top 55% 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.
Zhangjiagang Kangde XIN Optronics Material Co., Ltd. is a focused PatentsView assignee: 8 CPC subclasses with 83.3% of grants classified under G02B (OPTICAL ELEMENTS, SYSTEMS OR APPARATUS). Peak complete grant year is 2016 (3 grants) versus a trough of 1 in 2017. By volume, Zhangjiagang sits between Yum Connect, Llc and Zilltek Technology Corp..
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Yum Connect, LLC
12 patents
ZALMAN TECH CO., LTD.
12 patents
ZENG HSING INDUSTRIAL CO., LTD.
12 patents
ZEROPOINT TECHNOLOGIES AB
12 patents
ZHANGZHOU GO WIN LIGHTING CO., LTD
12 patents
ZHEJIANG AUSUN PHARMACEUTICAL CO., LTD.
12 patents
ZHEJIANG HAODA SCIENCE & TECHNOLOGY CO., LTD
12 patents
ZILLTEK TECHNOLOGY CORP.
12 patents
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL CO., LTD.
12 patents
What this shows Zhangjiagang holds 12 patents at rank #23,705, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #23,705 in granted patent volume.
Other assignees with the most granted patents in Zhangjiagang's primary technology class.
Zhangjiagang's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
33 Top 55% higher than 45% 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
Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2016 | 3 | 25.0% |
| 2017 | 1 | 8.3% |
| 2019 | 1 | 8.3% |
| 2020 | 1 | 8.3% |
| 2021 | 2 | 16.7% |
| 2023 | 1 | 8.3% |
| 2024 | 3 | 25.0% |
Top 8 of 8 technology areas
Overall rank by patents
#23,720
of 50,000 tracked assignees
33.5 out of 100
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.