Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
75 patents granted to the 21 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to Avantor, Inc.’s names, not what it holds today.
Patents granted
75
65 utility, 10 design, 1976 to Dec 31, 2025
Granted in 2025
4
Against 9 in 2024 and 7 in 2023
Applications published
65
6 of them in 2025
Names they are printed under
21
a subsidiary
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Macromolecular chemistry, polymers4
Engines, pumps, turbines4
Mechanical elements3
Organic fine chemistry2
Surface technology, coating2
Basic materials chemistry1
Chemical engineering1
Handling1
Audio-visual technology1
Medical technology1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name21 counted
AVANTOR PERFORMANCE MATERIALS, LLC a subsidiary
US, as the owner printed on each patent. 1 more under the same name are not counted (printed in NL)
19 granted
14 publishedRELIABLE BIOPHARMACEUTICAL CORPORATION a subsidiary
US, as the owner printed on each patent
11 granted
9 publishedMasterflex, LLC a subsidiary
US, as the owner printed on each patent. 1 more under the same name are not counted (printed in DE)
13 granted
0 publishedRitter GmbH a subsidiary
DE, as the owner printed on each patent. 2 more under the same name are not counted (printed in US)
9 granted
3 publishedApplied Silicone Corporation a subsidiary
US, as the owner printed on each patent
2 granted
6 publishedSEASTAR CHEMICALS ULC a subsidiary
CA, as the owner printed on each patent. 1 more under the same name are not counted (printed in US)
3 granted
5 publishedNUSIL TECHNOLOGY LLC a subsidiary
US, as the owner printed on each patent
7 granted
0 publishedAvantor Fluid Handling, LLC a subsidiary
US, as the owner printed on each patent
3 granted
3 publishedNuSil Technology LLC a subsidiary
named as the applicant on its applications, in US
0 granted
6 publishedRitter GmbH a subsidiary
named as the applicant on its applications, in DE
0 granted
5 publishedAVANTOR PERFORMANCE MATERIALS, LLC a subsidiary
named as the applicant on its applications, in US
0 granted
4 publishedSEASTAR CHEMICALS ULC a subsidiary
named as the applicant on its applications, in CA
0 granted
4 publishedSEASTAR CHEMICALS INC. a subsidiary
CA, as the owner printed on each patent
2 granted
1 publishedClemens GmbH & Co. KG a subsidiary
DE, as the owner printed on each patent
0 granted
2 publishedPuritan Products, Inc. a subsidiary
US, as the owner printed on each patent
2 granted
0 publishedadcatec GmbH a subsidiary
DE, as the owner printed on each patent
1 granted
1 publishedApplied Silicone Corporation a subsidiary
named as the applicant on its applications, in US
0 granted
1 publishedAvantor Fluid Handling LLC a subsidiary
named as the applicant on its applications, in US
0 granted
1 publishedMorehouse Cowles, Inc. a subsidiary
US, as the owner printed on each patent
1 granted
0 publishedMorehouse-Cowles, Inc., a CA corp. a subsidiary
US, as the owner printed on each patent
1 granted
0 publishedVWR International, Inc. a subsidiary
US, as the owner printed on each patent
1 granted
0 published
Names not counted (3)
Masterflex, LLC
Most of its patents print DE; this name counts in US. 0 granted and 9 published under it are not counted.
Masterflex, LLC
Most of its patents print DE; this name counts in US. 3 granted and 3 published under it are not counted.
Jencons (Scientific) LLC
Most of its patents print GB; this name counts in US. 3 granted and 0 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Sep 2, 2025 | 12,404,352 | Encapsulated catalyst for one-part organopolysiloxane systems and methods related thereto | Macromolecular chemistry, polymers | NUSIL TECHNOLOGY LLC |
| May 13, 2025 | D1,074,732 | Display screen with graphical user interface | | Masterflex, LLC |
| Apr 8, 2025 | 12,269,059 | Silicone compositions and methods related thereto | Macromolecular chemistry, polymers | NUSIL TECHNOLOGY LLC |
| Feb 4, 2025 | D1,060,432 | Pump head cover for a peristaltic pump | | Masterflex, LLC |
| Dec 10, 2024 | 12,162,653 | Cap with dual valve aseptic seals | Mechanical elements | Avantor Fluid Handling, LLC |
| Nov 5, 2024 | D1,050,209 | Rotor assembly for a peristaltic pump | | Masterflex, LLC |
| Oct 22, 2024 | 12,123,526 | Aseptic connect and disconnect coupler | Medical technology | Avantor Fluid Handling, LLC |
| Jun 18, 2024 | 12,012,953 | Liquid resistant pump, pump housing, and controls and methods of making and use thereof | Engines, pumps, turbines | Masterflex, LLC |
| May 21, 2024 | D1,027,596 | Pinch clamp | | Masterflex, LLC |
| Apr 2, 2024 | D1,021,074 | Adapter housing for a peristaltic pump | | Masterflex, LLC |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Nov 13, 2025 | 2025/0346614 | PROCESS FOR REMOVING TIN OXIDE DEPOSITS | Materials, metallurgy | SEASTAR CHEMICALS ULC |
| Nov 6, 2025 | 2025/0339370 | PERFORMANCE-ENHANCING EXCIPIENTS AND METHODS OF REDUCING VISCOSITY AND INCREASING STABILITY OF BIOLOGIC FORMULATIONS | Pharmaceuticals | AVANTOR PERFORMANCE MATERIALS, LLC |
| Jun 19, 2025 | 2025/0197794 | MEMBRANE RUPTURE COMPOSITIONS AND METHODS OF MAKING AND USING SAME | Biotechnology | AVANTOR PERFORMANCE MATERIALS, LLC |
| Jun 19, 2025 | 2025/0197429 | TIN CONTAINING ORGANOMETALLIC COMPOUNDS | Organic fine chemistry | SEASTAR CHEMICALS ULC |
| Feb 27, 2025 | 2025/0065656 | PLASTIC PRODUCT AND A METHOD FOR APPLYING AN IMPRINT TO A PLASTIC PRODUCT | Textile and paper machines | Ritter GmbH |
| Feb 27, 2025 | 2025/0065546 | PLASTIC PRODUCT AND METHOD FOR PRODUCING A PLASTIC PRODUCT | Other special machines | Ritter GmbH |
| Dec 12, 2024 | 2024/0410505 | FLOW REDUCER INSERT AND COLLIMATOR FOR A TRI-CLAMP HOSE BARB FITTING | Mechanical elements | Avantor Fluid Handling, LLC |
| Nov 7, 2024 | 2024/0368314 | ENCAPSULATED CATALYST FOR ONE-PART ORGANOPOLYSILOXANE SYSTEMS AND METHODS RELATED THERETO | Macromolecular chemistry, polymers | NuSil Technology LLC |
| Mar 14, 2024 | 2024/0084937 | ASEPTIC CONNECT AND DISCONNECT COUPLER | Medical technology | Avantor Fluid Handling, LLC · patent 12,123,526 granted from it |
| Dec 21, 2023 | 2023/0403996 | METHOD FOR CONTROLLING THE OPENING OF A WORK APPARATUS HAVING PAIRWISE ARRANGED PROCESSING DEVICES FOR VITICULTURE, AND WORK APPARATUS | Control | Clemens GmbH & Co. KG |
What it applied for, 2024 to 2025: Medical technology 1 · Macromolecular chemistry, polymers 1 · Mechanical elements 1 · Textile and paper machines 1 · Other special machines 1 · Organic fine chemistry 1.
A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.