Hangzhou Chipjet Technology Co., Ltd.
USPTO PatentsView assignee record - 22 granted patents across 10 technology areas, recorded in grant years 2019–2025. 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: B41J (TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors).
The verdict
According to USPTO PatentsView, Hangzhou ranks #13,452 of 49,997 tracked US assignees by granted-patent volume, with 22 patents across 10 technology areas.
- #13,452
- of 49,997 US assignees by volume
- Top 38%
- by Innovation Score (39.4/100)
- 12.2
- avg claims per patent
- +800%
- grant velocity, last 5 yrs
USPTO PatentsView assignee plate
Corpus R13452 · Foreign Corporation #13,452 · 22 grants
GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL
- GRANTS-SMALL 22 grants
- MID-PACK #13,452/49,997
- PHOTO-FINISH Gestamp Hardtech AB
- CPC-FOCUS B41J · 10 areas
- INNOV-THIN 39.4/100
- CLAIMS-RICH 12.2 claims/avg
- TYPE-FRNCORP Foreign Corp
- VEL-SURGE +800% vel
- BOOK-FULL 10/10 fields
Nearest grant-volume peer: Gestamp Hardtech AB (±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 Hangzhou’s 39.4 Innovation Score adds up
The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.
Innovation-score neighbourhood around Hangzhou
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
- Qualcomm Incorporated · highest
Qualcomm Incorporated · highest
85 score
- Hangzhou Chipjet… · this assignee
Hangzhou Chipjet… · this assignee
39 score
- 3D Lighting… · lowest 7
3D Lighting… · lowest
7 score
What this shows Hangzhou's Innovation Score is 39.4/100 (top 38% 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 Hangzhou?
Each dot is one of Hangzhou’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). Hangzhou’s own 12.2 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.
Where Hangzhou's grants concentrate
Hangzhou Chipjet Technology Co., Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 77.3% of grants classified under B41J (TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors). Peak complete grant year is 2023 (8 grants) versus a trough of 2 in 2019. By volume, Hangzhou sits between Gestamp Hardtech AB and Hgst, Inc..
Hangzhou's three-year grant acceleration
Hangzhou Chipjet Technology Co., Ltd. shows 12 grants in 2022–2024 against only 8 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.
Who files at Hangzhou's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- Gestamp Hardtech…
Gestamp Hardtech AB
22 patents
- Global Marketing…
Global Marketing Enterprise (GME) Ltd.
22 patents
- Glydways
Glydways Inc.
22 patents
- Guangzhou Institu…
Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences
22 patents
- HCL Italy S p A
HCL Technologies Italy S.p.A.
22 patents
- Hefei BOE Display…
Hefei BOE Display Light Co., Ltd.
22 patents
- Heishin
Heishin Ltd.
22 patents
- Hgst
Hgst, Inc.
22 patents
- Hangzhou Chipjet… ◀
Hangzhou Chipjet Technology Co., Ltd.
22 patents
What this shows Hangzhou holds 22 patents at rank #13,450, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Hangzhou
By rank, the assignees closest to #13,450 in granted patent volume.
- Gestamp Hardtech AB #13,446 · 22 patents
- Global Marketing Enterprise (GME) Ltd. #13,447 · 22 patents
- Glydways Inc. #13,448 · 22 patents
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences #13,449 · 22 patents
- HCL Technologies Italy S.p.A. #13,451 · 22 patents
- Hefei BOE Display Light Co., Ltd. #13,452 · 22 patents
- Heishin Ltd. #13,453 · 22 patents
- Hgst, Inc. #13,454 · 22 patents
Leaders in B41J (Typewriters)
Other assignees with the most granted patents in Hangzhou's primary technology class.
- Seiko Epson Corporation 5,146 in class
- Canon Kabushiki Kaisha 3,133 in class
- Brother Kogyo Kabushiki Kaisha 2,693 in class
- Hewlett-packard Development Company, L.P. 2,289 in class
- Ricoh Company, Ltd. 1,612 in class
- Xerox Corporation 781 in class
- Toshiba TEC Kabushiki Kaisha 615 in class
- Kyocera Document Solutions Inc. 553 in class
Hangzhou's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
39 Top 38% higher than 62% 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2019–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2019 | 2 | 9.1% |
| 2020 | 3 | 13.6% |
| 2021 | 3 | 13.6% |
| 2022 | 2 | 9.1% |
| 2023 | 8 | 36.4% |
| 2024 | 2 | 9.1% |
| 2025partial year | 2 | 9.1% |
Which technologies does Hangzhou Chipjet Technology Co., Ltd. patent most?
Top 10 of 10 technology areas
Data Source
USPTO PatentsView, US granted patents 2015–2025
What to do with this data
Hangzhou Chipjet Technology Co., Ltd.'s patent record in context - here's where to go next.
- Hangzhou Chipjet Technology Co., Ltd.'s lead technology class is B41J (TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors), 77.3% of its portfolio - see every assignee active in that class. Explore B41J
- Ranked #13,452 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
- Compare Hangzhou Chipjet Technology Co., Ltd. against Gestamp Hardtech AB, an assignee filing at a similar volume. Compare portfolios
- Innovation Score of 39.4/100 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.
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.