RK

Robert M. T. Kramer

📍 New York, NY: #3,324 of 20,192 inventorsTop 20%
🗺 New York: #23,203 of 115,490 inventorsTop 25%
Overall (All Time): #814,991 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
11279466 Self adjusting variable pitch aircraft propeller 2022-03-22
6932727 Baseball and softball bat grip 2005-08-23
6752731 Combination bat knob and handle grip 2004-06-22
5839983 Adjustable grips for a ball bat 1998-11-24
5038284 Method and apparatus relating to conducting trading transactions with portable trading stations 1991-08-06
5030013 Waterproof container and method of using the same 1991-07-09