How many patents does Fuelcell Energy Inc have in patentsdb?

Fuelcell Energy Inc is linked to 246 publications as assignee in our database.

What technology areas does Fuelcell Energy Inc patent most?

Top mapped technology areas by patent count: Cross-Sectional Technologies (242); Electricity (236); Chemistry & Metallurgy (78).

In our data, assignee counts were 22 in 2024 and 19 in 2025 (lower year over year).

See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.

Fuelcell Energy Inc holds 246 patents in our database, with recent filings and technology areas summarized below.

Year-over-year patent counts for this assignee.

Filing activity over the last five years is declining.

Latest publications where this party is an assignee.

Representative or frequently cited publications from precomputed assignee stats.

Most common classification codes in this portfolio.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Cross-Sectional Technologies	242
Electricity	236
Chemistry & Metallurgy	78
Operations & Transport	64
Mechanical Engineering	25
Physics	3

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Answers are generated from the same data shown on this page.

How many patents does Fuelcell Energy Inc have in patentsdb?: Fuelcell Energy Inc is linked to 246 publications as assignee in our database.
What technology areas does Fuelcell Energy Inc patent most?: Top mapped technology areas by patent count: Cross-Sectional Technologies (242); Electricity (236); Chemistry & Metallurgy (78).
Is Fuelcell Energy Inc's patent activity growing?: In our data, assignee counts were 22 in 2024 and 19 in 2025 (lower year over year).
What are recent patents assigned to Fuelcell Energy Inc?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.