David W. Pratt

📍 Auburn, WA: #2 of 24 inventorsTop 9%

🗺 Washington: #269 of 3,868 inventorsTop 7%

Overall (2003): #31,902 of 273,478Top 15%

Patents 2003

Issued Patents 2003

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6669255	Apparatus for inhibiting contamination of sample during bailer emptying	—	2003-12-30
6601889	Air-tight bailer system	—	2003-08-05
6543302	Multiple check valve bailer	—	2003-04-08