How many patents does Calgon Carbon Corp have in patentsdb?

Calgon Carbon Corp is linked to 86 publications as assignee in our database.

What technology areas does Calgon Carbon Corp patent most?

Top mapped technology areas by patent count: Operations & Transport (81); Chemistry & Metallurgy (41); Cross-Sectional Technologies (23).

In our data, assignee counts were 17 in 2024 and 11 in 2025 (lower year over year).

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

Calgon Carbon Corp holds 86 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 growing.

Latest publications where this party is an assignee.

Representative or frequently cited publications from precomputed assignee stats.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Operations & Transport	81
Chemistry & Metallurgy	41
Cross-Sectional Technologies	23
Mechanical Engineering	13
Human Necessities	7
Physics	2
Electricity	2
Textiles & Paper	2

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

How many patents does Calgon Carbon Corp have in patentsdb?: Calgon Carbon Corp is linked to 86 publications as assignee in our database.
What technology areas does Calgon Carbon Corp patent most?: Top mapped technology areas by patent count: Operations & Transport (81); Chemistry & Metallurgy (41); Cross-Sectional Technologies (23).
Is Calgon Carbon Corp's patent activity growing?: In our data, assignee counts were 17 in 2024 and 11 in 2025 (lower year over year).
What are recent patents assigned to Calgon Carbon Corp?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.