How many patents does Marr Michael David have in patentsdb?

Marr Michael David is linked to 44 publications as assignee in our database.

What technology areas does Marr Michael David patent most?

Top mapped technology areas by patent count: Physics (29); Electricity (26); Cross-Sectional Technologies (3).

In our data, assignee counts were 2 in 2023 and 1 in 2025 (lower year over year).

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

Marr Michael David holds 44 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 stable.

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
Physics	29
Electricity	26
Cross-Sectional Technologies	3

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

How many patents does Marr Michael David have in patentsdb?: Marr Michael David is linked to 44 publications as assignee in our database.
What technology areas does Marr Michael David patent most?: Top mapped technology areas by patent count: Physics (29); Electricity (26); Cross-Sectional Technologies (3).
Is Marr Michael David's patent activity growing?: In our data, assignee counts were 2 in 2023 and 1 in 2025 (lower year over year).
What are recent patents assigned to Marr Michael David?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.