Where does Purem GmbH rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Purem GmbH ranks #3,711 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 Purem GmbH hold?

Purem GmbH holds 98 US utility patents granted between 2021 and 2025, spanning 35 technology areas.

What is Purem GmbH's Innovation Score?

Purem GmbH has an Innovation Score of 66.9 out of 100 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Purem GmbH's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Purem GmbH.

What does claim depth mean for Purem GmbH's patents?

Purem GmbH's patents average 16.9 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 Purem GmbH 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

Purem GmbH

Q: What technology areas does Purem GmbH focus on?

Purem GmbH's top technology area is F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines) with 95 patents, ranking #22 of 487 assignees active in that subclass. Grants appear in 35 CPC subclasses total.

USPTO PatentsView assignee record - 98 granted patents across 35 technology areas, recorded in grant years 2021–2025. 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: F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Purem ranks #3,711 of 49,997 tracked US assignees by granted-patent volume, with 98 patents across 35 technology areas.

#3,711
of 49,997 US assignees by volume: Top 1%
by Innovation Score (66.9/100): 16.9
avg claims per patent

USPTO PatentsView assignee plate

Corpus R3711 · Foreign Corporation #3,711 · 98 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 98 grants
TOP-DECILE #3,711/49,997
PHOTO-FINISH Optimedica
CPC-FOCUS F01N · 35 areas
INNOV-STRONG 66.9/100
CLAIMS-RICH 16.9 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Optimedica Corporation (±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 Purem’s 66.9 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 15.9 pts (24%) Velocity 20.0 pts (30%) Breadth 20.9 pts (31%) Claim depth 10.1 pts (15%)

Qualcomm Incorporated · highest

85
Federal Express · near

67
Midea Group · near

67
Space Exploration · near

67
LG Chem · near

67
Purem · this assignee

67
3D Lighting… · lowest

7

What this shows Purem's Innovation Score is 66.9/100 (top 1% 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 Purem?

Each dot is one of Purem’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). Purem’s own 16.9 claims/patent is ABOVE the 16.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

Purem vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Purem's grants concentrate

Purem GmbH is a focused PatentsView assignee: 35 CPC subclasses with 96.9% of grants classified under F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines). Peak complete grant year is 2023 (33 grants) versus a trough of 9 in 2021. By volume, Purem sits between Optimedica Corporation and Smule, Inc..

Purem's three-year grant acceleration

Purem GmbH shows 75 grants in 2022–2024 against only 9 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.

Optimedica

98
Point Engineering

98
Pharmacyclics

98
Procore

98
Qingdao Haier Ref…

98
Rapidsos

98
Reliance Worldwide

98
Smule

98
Purem ◀

98

What this shows Purem holds 98 patents at rank #3,711, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Purem

By rank, the assignees closest to #3,711 in granted patent volume.

Leaders in F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR E…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Purem, neither rank-band nor same-CPC leaders (those blocks stay above). In F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR E…), Purem ranks #22 of 487 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (67 here).

LG Chem, Ltd. 67 Federal Express Corporation 67 Space Exploration Technologies Corp. 67 Midea Group Co., Ltd. 67

Similar claim depth

Nearest assignees by average claims per patent (16.9 here).

Yungu (Gu'an) Technology Co., Ltd. 16.9 avg Shengyi Technology Co., Ltd. 16.9 avg Kinaxis Inc. 16.9 avg University OF Connecticut 16.9 avg

Purem's Innovation Score vs. every tracked assignee

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

67 Top 1% higher than 99% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Purem GmbH patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	9	9.2%
2022	24	24.5%
2023	33	33.7%
2024	18	18.4%
2025partial year	14	14.3%

Which technologies does Purem GmbH patent most?

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 95

Y02T - Climate Change Mitigation Technologies Related TO Transportation 43

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 18

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 13

B01D - Separation 10

Y02A - Technologies FOR Adaptation TO Climate Change 8

F02D - Controlling Combustion Engines 7

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 7

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 7

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 5

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 5

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 4

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 3

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 3

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 2

Top 15 of 35 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Purem GmbH's patent record in context - here's where to go next.

Purem GmbH's lead technology class is F01N (Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines), 96.9% of its portfolio - see every assignee active in that class. Explore F01N
Ranked #3,711 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Purem GmbH against Optimedica Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 66.9/100 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.