DW

Douglas C. Winfield

AG Aero-X Golf: 36 patents #1 of 3Top 35%
AC Acushnet: 18 patents #110 of 496Top 25%
BD Black & Decker: 1 patents #1,429 of 2,138Top 70%
FM Foremost Golf Mfg.: 1 patents #6 of 11Top 55%
TG Taylormade-Adidas Golf: 1 patents #5 of 16Top 35%
U( United States Golf Association (Usga): 1 patents #14 of 25Top 60%
📍 Madison, AL: #1 of 715 inventorsTop 1%
🗺 Alabama: #29 of 10,951 inventorsTop 1%
Overall (All Time): #41,981 of 4,157,543Top 2%
58
Patents All Time

Issued Patents All Time

Showing 26–50 of 58 patents

Patent #TitleCo-InventorsDate
8251840 Low lift golf ball David L. Felker, Rocky Lee 2012-08-28
8246490 Low lift golf ball David L. Felker, Rocky Lee 2012-08-21
8226502 Low lift golf ball David L. Felker, Rocky Lee 2012-07-24
8202179 Low lift golf ball David L. Felker, Rocky Lee 2012-06-19
8202178 Low lift golf ball David L. Felker, Rocky Lee 2012-06-19
8197361 Low lift golf ball David L. Felker, Rocky Lee 2012-06-12
8192306 Low lift golf ball David L. Felker, Rocky Lee 2012-06-05
8192307 Low lift golf ball David L. Felker, Rocky Lee 2012-06-05
8038548 Low lift golf ball David L. Felker, Rocky Lee 2011-10-18
D646736 Golf ball David L. Felker 2011-10-11
D645528 Golf ball David L. Felker 2011-09-20
D645529 Golf ball David L. Felker 2011-09-20
7369158 Launch monitor system with a calibration fixture and a method for use thereof William Gobush, Diane Pelletier, Charles Days, Steven Aoyama, Edmund A. Hebert +1 more 2008-05-06
7160209 Multilayer golf ball Edigio Marotta, George Wallace, Jim Mann 2007-01-09
7086955 Method and apparatus to determine golf ball trajectory and flight William Gobush, Diane Pelletier, Charles Days, Steven Aoyama, Edmund A. Hebert +1 more 2006-08-08
6781621 Launch monitor system with a calibration fixture and a method for use thereof William Gobush, Diane Pelletier, Charles Days, Steven Aoyama, Edmund A. Hebert +1 more 2004-08-24
6764412 Method and apparatus to determine golf ball trajectory and flight William Gobush, Diane Pelletier, Charles Days, Steven Aoyama, Edmund A. Hebert +1 more 2004-07-20
6758759 Launch monitor system and a method for use thereof William Gobush, Diane Pelletier, Charles Days 2004-07-06
6682441 Phyllotaxis-based dimple patterns Kevin M. Harris 2004-01-27
6682442 Dimple patterns on golf balls 2004-01-27
6616543 Apparatus to determine golf ball trajectory and flight William Gobush, Diane Pelletier, Charles Days, Steven Aoyama, Edmund A. Hebert +1 more 2003-09-09
6609983 Dimple pattern on golf balls 2003-08-26
6571600 Apparatus and method for measurement of coefficient of restitution and contact time Laurent Bissonnette, Charles Days, Roman D. Halko, Emanuel Vieira 2003-06-03
6533684 Phyllotaxis-based dimple patterns Kevin M. Harris 2003-03-18
6527653 Pentagonal hexecontahedron dimple pattern on golf balls Steven Aoyama 2003-03-04