USPTO 2015–2025 USPTO PatentsView US Corporation

Key Technology, Inc.

USPTO PatentsView assignee record - 39 granted patents across 23 technology areas, recorded in grant years 2015–2024. 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: B07C (Postal SORTING; Sorting Individual Articles, OR Bulk Material FIT TO BE Sorted Piece-meal, e.g. BY Picking).

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The verdict

According to USPTO PatentsView, Key ranks #8,233 of 49,997 tracked US assignees by granted-patent volume, with 39 patents across 23 technology areas.

#8,233
of 49,997 US assignees by volume
Top 27%
by Innovation Score (44.0/100)
19.1
avg claims per patent
-78%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8233 · US Corporation #8,233 · 39 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

  • GRANTS-SMALL 39 grants
  • UPPER-Q #8,233/49,997
  • PHOTO-FINISH Kason Industries
  • CPC-FOCUS B07C · 23 areas
  • INNOV-PAR 44.0/100
  • CLAIMS-RICH 19.1 claims/avg
  • TYPE-USCORP US Corporation
  • VEL-DROP -78% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kason Industries, Inc. (±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 Key’s 44.0 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 Key

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

What this shows Key's Innovation Score is 44.0/100 (top 27% 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.

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

Does more volume mean deeper claims for Key?

Each dot is one of Key’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). Key’s own 19.1 claims/patent is ABOVE the 11.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Key vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 38.939.039.03939.039.039.1 0510152025 Granted patents (volume) Avg claims / patent Kotobuki & Co., Ltd. - 39, 6.67Kotobuki &KSB Aktiengesellschaft - 39, 11.62KSB Aktiengesells…Kuang-chi Innovative Technology Ltd. - 39, 15.1Kuang-chi Innovat…Kason Industries, Inc. - 39, 8.15Kason IndustriesKid Stuff Marketing, Inc. - 39, 2.23Kid Stuff Marketi…Lacks Enterprises, Inc. - 39, 19.87Lacks EnterprisesLamberti SPA - 39, 12.23Lamberti SPALingdong Technology (BEIJING) Co. Ltd. - 39, 15.38Lingdong Technolo…Key Technology, Inc. - 39, 19.15Key Technology
Key vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Key's grants concentrate

Key Technology, Inc. is a focused PatentsView assignee: 23 CPC subclasses with 41% of grants classified under B07C (Postal SORTING; Sorting Individual Articles, OR Bulk Material FIT TO BE Sorted Piece-meal, e.g. BY Picking). Peak complete grant year is 2019 (10 grants) versus a trough of 1 in 2024. By volume, Key sits between Kotobuki & Co., Ltd. and Lingdong Technology (BEIJING) Co. Ltd..

Key's three-year grant acceleration

Key Technology, Inc. shows 5 grants in 2022–2024 against only 12 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 Key's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Key holds 39 patents at rank #8,235, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Key

By rank, the assignees closest to #8,235 in granted patent volume.

Leaders in B07C (Postal Sorting)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Key, neither rank-band nor same-CPC leaders (those blocks stay above). In B07C (Postal Sorting), Key ranks #15 of 282 assignees by patent count in that subclass.

Key's Innovation Score vs. every tracked assignee

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

44 Top 27% higher than 73% of 49,997 US assignees

This assignee 0 100 every tracked assignee, bucketed by value

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

024681012 201520162017201820192020202220232024 1
USPTO utility patent grants by year · 2015–2024

Grants by year

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

View data table
Key Technology, Inc. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 7 17.9%
2016 8 20.5%
2017 3 7.7%
2018 4 10.3%
2019 10 25.6%
2020 2 5.1%
2022 2 5.1%
2023 2 5.1%
2024 1 2.6%

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

What to do with this data

Key Technology, Inc.'s patent record in context - here's where to go next.

  • Key Technology, Inc.'s lead technology class is B07C (Postal SORTING; Sorting Individual Articles, OR Bulk Material FIT TO BE Sorted Piece-meal, e.g. BY Picking), 41% of its portfolio - see every assignee active in that class. Explore B07C
  • Ranked #8,233 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Key Technology, Inc. against Kotobuki & Co., Ltd., an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 44.0/100 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.