Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JC

John T. Chamberlain — 4 Patents

IBM: 4 patents #21,783 of 70,183Top 35%
Medford, MA: #292 of 941 inventorsTop 35%
Massachusetts: #27,912 of 88,656 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
John T. Chamberlain has been granted 4 US patents while listed as an inventor at IBM. The first was granted in 2002 and the most recent in June 2010. John T. Chamberlain ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list John T. Chamberlain in Medford, MA, US.

Patents per Year

Patents granted per year, 2002 to 2010Bar chart with a peak of 2 patents in 2002.peak 22002: 2 patents20022006: 1 patents20062010: 1 patents2010

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7730461 Software tool configured to generate test cases characterized by a linear range of integral values Joann Jordan 2010-06-01 $6,263,000
7124402 Testing software module responsiveness to string input tokens having lengths which span a range of integral values 2006-10-17 $10,414,000
6408360 Cache override control in an apparatus for caching dynamic content Edward M. Batchelder, Andrew J. Warton, Charles Dumont 2002-06-18 $15,516,000
6351767 Method and system for automatically caching dynamic content based on a cacheability determination Edward M. Batchelder, Andrew Wharton, Charles Dumont 2002-02-26 $30,939,000