Two-component polyurethane composition with a high degree of hydrophobicity and adjustable pot life
US-12486350-B2 · Dec 2, 2025 · US
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Kelch Steffen patents
Kelch Steffen is listed as an inventor on 50 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Kelch Steffen |
| Total patents | 50 |
| First publication | Jun 11, 2015 |
| Latest publication | Dec 2, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Method for producing a laminate from wood and a curable composition
US-2025162194-A1 · May 22, 2025 · US
Conductive mortar
US-12304862-B2 · May 20, 2025 · US
Method for producing a laminate of wood and cementitious compositions
US-2025019558-A1 · Jan 16, 2025 · US
Slag-containing polymer concrete and grouting mortar
US-12116316-B2 · Oct 15, 2024 · US
Polyisocyanurate plastics with high transparency
US-2024294692-A1 · Sep 5, 2024 · US
Polyurethane-based polymer concretes and grouting mortars
US-12037288-B2 · Jul 16, 2024 · US
Polyurethane based polymer concretes and grouting mortars of controlled density
US-2023339813-A1 · Oct 26, 2023 · US
Epoxy resin adhesive with high compressive strength
US-11795354-B2 · Oct 24, 2023 · US
Two-component polyurethane composition
US-11680131-B2 · Jun 20, 2023 · US
Recent patents
Latest publications not already listed above.
Two-component polyurethane composition with a high degree of hydrophobicity and adjustable pot life
US-2023047357-A1 · Feb 16, 2023 · US
Slag-containing polymer concrete and grouting mortar
US-2022227669-A1 · Jul 21, 2022 · US
Polyurethane-based polymer concretes and grouting mortars
US-2022220032-A1 · Jul 14, 2022 · US
Conductive mortar
US-2022212991-A1 · Jul 7, 2022 · US
Two-component polyurethane composition
US-2022064359-A1 · Mar 3, 2022 · US
Two-component polyurethane adhesive having substantially temperature-independent mechanical properties and high strength
US-11149106-B2 · Oct 19, 2021 · US
Curable composition
US-10899926-B2 · Jan 26, 2021 · US
Two-component polyurethane composition
US-2020199286-A1 · Jun 25, 2020 · US
Epoxy resin adhesive with high compressive strength
US-2020087552-A1 · Mar 19, 2020 · US
Hydrophobic and highly elastic two-component polyurethane composition having mechanical properties and adhesive properties not dependent on temperature
US-10563103-B2 · Feb 18, 2020 · US
Two-component polyurethane composition
US-2020017627-A1 · Jan 16, 2020 · US
Two component polyurethane composition
US-2019322914-A1 · Oct 24, 2019 · US
Two-component composition
US-10428252-B2 · Oct 1, 2019 · US
Two-component polyurethane adhesive having substantially temperature-independent mechanical properties and high strength
US-2019169354-A1 · Jun 6, 2019 · US
Curable composition
US-2019040253-A1 · Feb 7, 2019 · US
Polyurea composition
US-10189938-B2 · Jan 29, 2019 · US
Structural polyurethane adhesive
US-10059863-B2 · Aug 28, 2018 · US
Hydrophobic and highly elastic two-component polyurethane composition having mechanical properties and adhesive properties not dependent on temperature
US-2018201815-A1 · Jul 19, 2018 · US
Structural polyurethane adhesive
US-9914862-B2 · Mar 13, 2018 · US
Two component polyurethane composition
US-9896609-B2 · Feb 20, 2018 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Sika Tech Ag | 40 |
| Sika Technology Ag | 10 |
| Burckhardt Urs | 2 |
| Kelch Steffen | 2 |
| Wolf Ulrich | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C04B40/065 | 22 |
| C04B26/16 | 20 |
| C09J175/04 | 19 |
| C09J5/00 | 18 |
| C08G18/3206 | 18 |