How many patents does Johns Manville have in patentsdb?

Johns Manville is linked to 859 publications as assignee in our database.

What technology areas does Johns Manville patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (534); Operations & Transport (406); Cross-Sectional Technologies (383).

In our data, assignee counts were 52 in 2024 and 46 in 2025 (lower year over year).

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

Johns Manville holds 859 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	534
Operations & Transport	406
Cross-Sectional Technologies	383
Textiles & Paper	237
Fixed Constructions	229
Mechanical Engineering	196
Electricity	103
Physics	36
Human Necessities	16

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

How many patents does Johns Manville have in patentsdb?: Johns Manville is linked to 859 publications as assignee in our database.
What technology areas does Johns Manville patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (534); Operations & Transport (406); Cross-Sectional Technologies (383).
Is Johns Manville's patent activity growing?: In our data, assignee counts were 52 in 2024 and 46 in 2025 (lower year over year).
What are recent patents assigned to Johns Manville?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.