Description
Class C04B : LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS
Subclass 7/04: Hydraulic cements Portland cement using raw materials containing gypsum
C04B 7/04
Sub-Class
Stats
- 13 US PATENTS IN FORCE
- 3 US APPLICATIONS PENDING
- 12 Total Patent Owners
- 129 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 9944556 | Compositions with synthetic gypsum and methods | Oct 15, 14 | Apr 17, 18 | THE UNITED STATES GYPSUM COMPANY |
| 9340455 | Method and system for the production of hard plaster | Sep 11, 09 | May 17, 16 | CLAUDIUS PETERS PROJECTS GMBH |
| 9102567 | Engineered Portland cement incorporating SCMs and methods for making same | May 30, 13 | Aug 11, 15 | Roman Cement, LLC |
| 9034098 | Hydraulic binder with low clinker content | Jan 26, 12 | May 19, 15 | LAFARGE |
| 8882906 | Method for recycling waste water from a stainless steel slag treatment process | Jul 18, 11 | Nov 11, 14 | RECOVAL BELGIUM |
| 8852338 | Cementitious binders and wood particles-based incombustible coloured composite panel with structural high performance | Oct 25, 13 | Oct 07, 14 | Secil-Companhia Geral de Cal e Cimento, S.A. |
| 8404039 | Secondary synthetic method for calcium sulphoaluminate mineral in Portland cement clinker | Jul 15, 10 | Mar 26, 13 | NANJING UNIVERSITY OF TECHNOLOGY |
| 8343272 | Lightweight construction material and methods and device for fabrication thereof | Apr 27, 10 | Jan 01, 13 | Not available |
| 7527688 | Cementitious compositions for oil well cementing applications | Dec 19, 07 | May 05, 09 | HOLCIM (US), Inc. |
| 5873936 | Cement composition self-leveling floor coating formulations and their method of use | Nov 17, 97 | Feb 23, 99 | MAXXON CORPORATION |
| 5846316 | Shrinkage-compensating concrete | Sep 12, 96 | Dec 08, 98 | CSA RESEARCH LLC |
| 5698027 | Method and plant for manufacturing mineralized portland cement clinker | Nov 01, 96 | Dec 16, 97 | F. L. Smidth & Co. A/S |
| 5685903 | Cementitious gypsum-containing compositions and materials made therefrom | Sep 13, 96 | Nov 11, 97 | NATIONAL GYPSUM PROPERTIES, LLC |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0351,946 | CONSTRUCTION MATERIAL COMPOSITIONS HAVING HIGH EARLY AND LATE STRENGTH | Aug 09, 22 | Oct 24, 24 | Not available |
| 2024/0279,111 | Use of Limestone Rock Aggregate (LRA) as a Component for the Production of Portland Cement Clinker, Portland Cement, or Related Mineralogy | Feb 02, 24 | Aug 22, 24 | Not available |
| 2024/0010,555 | CEMENT COMPOSITIONS WITH 3D GRAPHENE CARBONS | Sep 07, 23 | Jan 11, 24 | LytEn, Inc. |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 24 Months (last 2 years Issuances)
- 24 Months (last 5 years Issuances)