How many patents does Sigma Aldrich Co Llc have in patentsdb?

Sigma Aldrich Co Llc is linked to 157 publications as assignee in our database.

What technology areas does Sigma Aldrich Co Llc patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (138); Human Necessities (40); Cross-Sectional Technologies (38).

In our data, assignee counts were 13 in 2024 and 9 in 2025 (lower year over year).

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

Sigma Aldrich Co Llc holds 157 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
Chemistry & Metallurgy	138
Human Necessities	40
Cross-Sectional Technologies	38
Physics	24
Operations & Transport	16
Electricity	7

Free tools are coming soon. Tell us what you want to track and we'll notify you.

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

How many patents does Sigma Aldrich Co Llc have in patentsdb?: Sigma Aldrich Co Llc is linked to 157 publications as assignee in our database.
What technology areas does Sigma Aldrich Co Llc patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (138); Human Necessities (40); Cross-Sectional Technologies (38).
Is Sigma Aldrich Co Llc's patent activity growing?: In our data, assignee counts were 13 in 2024 and 9 in 2025 (lower year over year).
What are recent patents assigned to Sigma Aldrich Co Llc?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.