Do you want a broad landscape overview of US patent applications that claim histamine biosynthesis, or are you looking for specific patent documents and their claims?
Here’s a concise map of what US patent applications in this space tend to cover, so you know what to look for:
Common claim themes in US patent apps on histamine biosynthesis
- Recombinant hosts for histamine production
- Methods and host cells (e.g., E. coli, yeast, Lactococcus, Bacillus) engineered to overexpress histidine decarboxylase (HDC) or other decarboxylases to convert L-histidine into histamine.
- Specific genetic constructs: vectors, promoters, gene variants, codon optimizations, and regulatory elements that improve flux to histamine.
- Strains with improved performance: higher yield, productivity, tolerance to histamine, or reduced byproducts.
- Enzymes and biocatalysts
- Isolated or recombinant histidine decarboxylases and related decarboxylases used to synthesize histamine.
- Engineered or mutated enzymes with altered activity, stability, or substrate scope.
- In vitro or whole-cell biocatalysis claims using these enzymes.
- Fermentation and process claims
- Methods for producing histamine via fermentation or bioconversion, including culture conditions (pH, temperature, oxygen levels, feed strategies).
- Media formulations and feedstocks (e.g., inexpensive substrates) that support histamine production.
- In situ product removal (ISPR) or downstream processing steps integrated with production to enable higher titers and easier purification.
- Purification and recovery
- Isolation, purification, and formulation of histamine from fermentation broth, including chromatography or other purification schemes.
- Methods to reduce byproducts or improve purity
- Strains or process conditions that minimize undesired side products, enabling purer histamine output.
- Applications and uses
- Histamine production for pharmaceutical intermediates, research reagents, nutraceuticals, or chemical synthesis, and claims tying the biosynthesis to these uses.
- In vitro and cell-free systems
- Enzymatic synthesis of histamine without living cells, using immobilized enzymes or biocatalytic cascades.
How to locate US patent applications and analyze claims
- Start with a keyword search:
- Histamine biosynthesis
- Histidine decarboxylase
- Histamine production
- Bioproduction of histamine
- Use patent databases:
- Google Patents: easy keyword search and full-text claims. Try queries like “histamine biosynthesis histidine decarboxylase US” and filter to US publications.
- USPTO Patents Full-Text and Image Database (PatFT/AppFT): for official US publications and granted patents.
- Look for independent claims that define:
- A recombinant host cell and a method of producing histamine (typical independent claim).
- An isolated enzyme or biocatalyst used to produce histamine (typical independent claim).
- A fermentation or purification process (typical independent claim).
- Note common dependent claim themes:
- Specific host organism, gene, promoter, or pathway variant.
- Conditions of culture, feed, and ISPR steps.
- Purification steps and formulations.
- Specific titers, yields, or productivities (if disclosed).
- CPC/IPC codes to watch:
- Enzyme technology and recombinant DNA categories (e.g., enzyme-catalyzed production, microbial production, genetic constructs).
- Fermentation and bioprocess optimization categories.
- If you want, I can help interpret specific claims you provide (claim language from a patent document).
Would you like me to:
- Provide a focused list of US patent publications (with summaries of what each independent claim covers) on histamine biosynthesis, or
- Help you set up a targeted search strategy and sift results from Google Patents/USPTO for a quick landscape?
If you have any patent numbers or assignees in mind, share them and I can summarize the claims for those documents.