In practice the two terms overlap heavily in patent drafting, and this dataset treats them together because filers often use them interchangeably in titles and abstracts. Geopolymer typically refers to a specific alkali-activated aluminosilicate network formed from precursors like metakaolin, fly ash or slag, while alkali-activated material is the broader umbrella covering any binder set by an alkaline activator. When reviewing a specific claim, check whether it names a precursor chemistry explicitly (metakaolin, fly ash, slag, ultramafic rock) — that is usually the more limiting element, more than the geopolymer/AAM label itself.

No single assignee dominates this dataset by volume, and recent-year momentum across tracked filers is flat or negative — the most active recent filer is still down year over year. Filing activity instead shows a long tail of academic and corporate filers with one or a handful of families each, plus a small cluster of university co-filing pairs. This pattern matters for competitive intelligence: it means a strong freedom-to-operate position is unlikely to be blocked by one or two entrenched portfolios, but it also means influence, measured by citations, sits with older individual families rather than an ongoing filer.

India is the leading receiving office in this dataset with 72 filings, well ahead of the United States at 43 and PCT filings at 25. This likely reflects both a large domestic fly-ash supply from coal power generation, which is a key geopolymer precursor, and active government and academic research programmes targeting low-carbon cement alternatives. It is worth checking India-office filings specifically when assessing precursor-sourcing or activator-dosage claims, since regional filing strategy here appears to track raw-material availability rather than simply market size.

Activator dosage describes the ratio of alkaline activator (commonly sodium or potassium hydroxide or silicate) to the total binder mixture, and it is one of the parameters that most directly determines setting time, strength development and efflorescence risk. Claims in this space, including the featured 2025 Restone AS filing, often define this as a numeric ratio range (for example, an R value between 3 and 14) alongside an activator modulus range. Because these ranges are frequently the most limiting element of a claim, checking whether a proposed formulation's dosage falls inside or outside a patented range is a practical first step in any freedom-to-operate review.

The clearest gaps sit in application-level claims rather than core binder chemistry: pavement, coating, structural-component and additive-manufacturing uses of geopolymer binders each have only single-digit-to-low-double-digit filing counts compared with 229 core chemistry families. Efflorescence-suppression additive packages and setting-time control through precursor blending also appear thinly claimed relative to how often those terms appear in search criteria. A first claim in one of these areas would likely combine a known binder chemistry with a specific, narrowly defined application process step, rather than trying to claim new base chemistry.