§ Patent Intelligence

The patents that quietly run your plant.

A curated, editorial reading of the public patent record around gypsum board manufacturing. Each entry strips the legal scaffolding and rebuilds the chemistry and process consequences in language a plant engineer can act on, with annotated diagrams of the mechanism.

Summaries are NGL editorial readings of published abstracts and granted claims. Always consult the full granted document and qualified counsel before any commercial decision.

US 8,038,790 B2
Granted
Low-Dust Joint Compound and Related Lightweight Board System
United States Gypsum (USG) · United States · published 2011-10-18

The patent family that reframed what a half-inch board weighs and forced a three-year industry catch-up.

LightweightFoam architectureStarch rebalance
EP 2 090 559 B1
Granted
Lightweight Plasterboard with Engineered Pore Architecture
Saint-Gobain Placo · European Patent Office · published 2009-08-19

Defines a surfactant pair whose differing interfacial elasticities engineer a controlled, partially-collapsing foam in the set core.

LightweightBimodal foamSurfactant pair
US 6,342,284 B1
Granted
Gypsum Board with Improved Moisture Resistance
United States Gypsum (USG) · United States · published 2002-01-29

Foundation chemistry for silicone-grafted hydrophobization of the dihydrate crystal surface.

HydrophobizationSilicone (PMHS)Type WR / Type H
US 7,338,990 B2
Granted
Polycarboxylate Dispersants for Calcium Sulfate Hemihydrate Systems
BASF Construction Polymers · United States · published 2008-03-04

Defines a PCE comb-polymer architecture specifically tuned for the calcium sulfate hemihydrate / dihydrate equilibrium.

PCE dispersantWater reductionKiln energy
US 7,754,007 B2
Granted
Starch Wallboard System and Method
United States Gypsum (USG) · United States · published 2010-07-13

Elevates starch loading and re-engineers the migratory–non-migratory balance to carry the bond through a lightened core.

Migratory starchPaper bondCore strength
US 8,323,785 B2
Granted
Fire-Resistant Gypsum Panel with Enhanced High-Temperature Core Integrity
United States Gypsum (USG) · United States · published 2012-12-04

Defines a glass-fiber and unexpanded-vermiculite loading that holds the core together after both bound-water dehydrations.

Fire-ratedGlass fiberVermiculiteType X
How we read

We strip the document to three things: what is being protected, what the mechanism actually is, and what changes on your line if you operate inside, around, or on top of the claims.

What we won't do

Help you infringe. The hub is an engineering education resource. Where a formulation direction lives inside live claims, we will say so and route you to a non-infringing architecture.

Request a deep dive

We maintain working files on roughly 140 board-relevant patents. If you need a written read on a specific document or family, ask via Contact.