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Callahan David patents

Callahan David holds 3 patents in our database, with recent filings and technology areas summarized below.

Company patent statistics
MetricValue
Total patents3
Recent patents0
First publicationFeb 17, 2015
Latest publicationMar 8, 2016

Filing trend

Year-over-year patent counts for this assignee.

Filing activity appears to be declining based on the most recent years.

Patents filed per year
YearPatents
20152
20161
Browse patents by year
YearPatents
20152
20161

Recent patents

Latest publications where this party is an assignee.

Notable patents

Representative or frequently cited publications from precomputed assignee stats.

Top CPC classifications

Most common classification codes in this portfolio.

Top CPC codes by patent count
CPCPatents
G06F9/522
G06F12/08311
G06F12/08111
G06F2212/6211
G06F9/4671

Technology areas

Mapped technology topics for this assignee.

Company technology slices
TechnologyPatents
Physics3