How many patents does Hifi Eng Inc have in patentsdb?

Hifi Eng Inc is linked to 90 publications as assignee in our database.

What technology areas does Hifi Eng Inc patent most?

Top mapped technology areas by patent count: Physics (89); Mechanical Engineering (30); Fixed Constructions (28).

In our data, assignee counts were 11 in 2024 and 3 in 2025 (lower year over year).

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

Hifi Eng Inc holds 90 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 rapidly declining.

Latest publications where this party is an assignee.

Representative or frequently cited publications from precomputed assignee stats.

Mapped technology topics for this assignee.

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

How many patents does Hifi Eng Inc have in patentsdb?: Hifi Eng Inc is linked to 90 publications as assignee in our database.
What technology areas does Hifi Eng Inc patent most?: Top mapped technology areas by patent count: Physics (89); Mechanical Engineering (30); Fixed Constructions (28).
Is Hifi Eng Inc's patent activity growing?: In our data, assignee counts were 11 in 2024 and 3 in 2025 (lower year over year).
What are recent patents assigned to Hifi Eng Inc?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.