PlainPatent
USPTO 2015–2025 USPTO PatentsView US Corporation

X4 Pharmaceuticals, Inc.

USPTO PatentsView assignee record - 16 granted patents across 5 technology areas, recorded in grant years 2020–2025. 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: A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS).

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, X4 ranks #18,301 of 50,000 tracked US assignees by granted-patent volume, with 16 patents across 5 technology areas.

#18,301
of 50,000 US assignees by volume
Top 42%
by Innovation Score (37.9/100)
18.8
avg claims per patent

USPTO PatentsView assignee plate

Corpus R18301 · US Corporation #18,301 · 16 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · SPAN-YRS · BOOK-RICH

  • GRANTS-MICRO 16 grants
  • MID-PACK #18,301/50,000
  • PHOTO-FINISH World Wide Daily Hol…
  • CPC-NARROW A61P · 5 areas
  • INNOV-THIN 37.9/100
  • CLAIMS-RICH 18.8 claims/avg
  • TYPE-USCORP US Corporation
  • SPAN-YRS 2020–2025 · 6y
  • BOOK-RICH 9/10 fields

Nearest grant-volume peer: World Wide Daily Holdings Company Limited (±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.

Innovation-score neighbourhood around X4

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

score

What this shows X4 Pharmaceuticals, Inc. stamps GRANTS-MICRO, MID-PACK, PHOTO-FINISH, CPC-NARROW, INNOV-THIN, CLAIMS-RICH, TYPE-USCORP, SPAN-YRS, BOOK-RICH. Volume places it #18,301 of 50,000; Innovation Score 37.9/100 sits in the top 42% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is World Wide Daily Holdings Company Limited (±0 grants).

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

Portfolio overview

X4 Pharmaceuticals, Inc. has been granted 16 US utility patents between 2020 and 2025, placing X4 Pharmaceuticals, Inc. at #18,301 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 5 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.8 claims per patent with primary concentration in A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS). As a US Corporation, X4 Pharmaceuticals, Inc. is one of the more focused assignees in the PatentsView dataset. By volume, X4 sits between World Wide Daily Holdings Company Limited (16 patents, rank #18,293) and Xtreme Orthopedics Llc (16 patents, rank #18,301) - the closest US assignees by grant volume. The composite Innovation Score of 37.9/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Historical data spans 2020 through 2025, with 16 total grants over that period. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The US Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. X4 Pharmaceuticals, Inc.'s 18.8 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 5 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Who files at X4's volume?

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

patents

What this shows X4 holds 16 patents at rank #18,297, 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 X4

By rank, the assignees closest to #18,297 in granted patent volume.

Leaders in A61P (Specific Therapeutic Activity OF Chemical Compounds OR Me…)

Other assignees with the most granted patents in X4's primary technology class.

X4's Innovation Score vs. every tracked assignee

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

38 Top 42% higher than 58% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). This entry sits in this band. 40–50: 11,491 US assignees (23%). Above this entry. 50–60: 5,058 US assignees (10%). Above this entry. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. 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

0123456 202020212022202320242025 2
USPTO utility patent grants by year · 2020–2025

Grants by year

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

View data table
X4 Pharmaceuticals, Inc. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2020 3 18.8%
2021 3 18.8%
2022 5 31.3%
2023 2 12.5%
2024 1 6.3%
2025partial year 2 12.5%

Which technologies does X4 Pharmaceuticals, Inc. patent most?

Top 5 of 5 technology areas

Where it ranks

Overall rank by patents

#18,301

of 50,000 tracked assignees

Innovation Score

37.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?
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

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.