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

Michael V. Caldwell — 4 Patents

UNUnknown: 3 patents #7,366 of 83,584Top 9%
OHOrca Health: 1 patents #8 of 13Top 65%
WMWaste Management: 1 patents #37 of 38Top 100%
Clovis, CA: #36 of 230 inventorsTop 20%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Michael V. Caldwell has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1993 and the most recent in September 2014. Michael V. Caldwell ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Michael V. Caldwell in Clovis, CA, US.

Patents per Year

Patents granted per year, 1993 to 2014Bar chart with a peak of 1 patents in 1993.peak 11993: 1 patents19932009: 1 patents20092012: 1 patents20122014: 1 patents2014

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8843852 Medical interface, annotation and communication systems Matthew M. Berry, Robert M. Berry, Wesley D. Chapman, Shawn B. Saunders, Spencer T. Hall +3 more 2014-09-23
8220442 Vortex exhaust recovery system having improved muffler 2012-07-17
7618547 Groundwater treatment system with air injection into vadose zone 2009-11-17 $104,734,000
5247815 Tire clamp for preventing theft of a vehicle 1993-09-28