CK

Charles D. Kownacki

ST Spin Master Toys: 6 patents #1 of 4Top 25%
PP Power Distribution Products: 2 patents #1 of 4Top 25%
EM Emsco: 2 patents #3 of 5Top 60%
SP Simonton Building Products: 1 patents #2 of 21Top 10%
SM Spin Master: 1 patents #102 of 168Top 65%
Disney: 1 patents #3,944 of 6,686Top 60%
OS Osteomed: 1 patents #48 of 79Top 65%
PP Precise Plastics: 1 patents #3 of 4Top 75%
📍 Erie, PA: #21 of 1,097 inventorsTop 2%
🗺 Pennsylvania: #2,031 of 74,527 inventorsTop 3%
Overall (All Time): #134,076 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
12235070 Efficient high-velocity compressed-gas-powered gun William S. Nachefski 2025-02-25
11123649 Moov fidget toy 2021-09-21
10266303 Light-weight structural panel construction Steven Mansfield 2019-04-23
8984820 Geometrics window system Gregory N. Farrell 2015-03-24
8322103 Faux brick with suspension system 2012-12-04
7415797 Impact resistant tilt window assembly Cynthia Dotson, Thomas D. Riggs, Jimmie Daniels, Mark B. Marvin, Stephen T. Mansfield +3 more 2008-08-26
7178529 Noctumal oral airway dilator 2007-02-20
7162841 Spring clip and method of window installation 2007-01-16
6921315 Toy vehicle having an integral pump assembly 2005-07-26
6749797 One-piece injection molded window frame and sash Stephen T. Mansfield, Craig Lawson, Charline W. Crooks 2004-06-15
6632119 Winding device and ornithopter utilizing same Frank Chernek 2003-10-14
6404589 Light-weight video cassette Gregory N. Farrell 2002-06-11
6347623 Toy projectile launching assembly Jeffery G. Rehkemper 2002-02-19
6260265 Circuit board stiffener Paul M. Deters 2001-07-17
6230605 Piston-to-cylinder seal for a pneumatic engine 2001-05-15
6122815 Circuit board stiffener and method of attachment to a circuit board Paul M. Deters 2000-09-26
6085631 Piston-to-cylinder seal for a pneumatic engine 2000-07-11
6079954 Air pumping station for pneumatic toy vehicle Jeffrey Rehkemper, Ronnen Harary 2000-06-27
6048247 Main wing positioning and release system for a toy aircraft Jeffrey Rehkemper, Ronnen Harary 2000-04-11
D419205 Combined airplane and pumping station Jeffrey Rehkemper, Ronnen Harary 2000-01-18
6006517 Pneumatic engine Jeffrey Rehkemper, Ronnen Harary 1999-12-28
5988207 Decorative storage device for garden hose Franklin T. Clark, Jr., Stephen M. Oas, John C. Ramsey 1999-11-23
5956892 Lawn and garden edging with watering capability Franklin T. Clark, Jr., Stephen M. Oas, John C. Ramsey 1999-09-28
D410824 Decorative storage device for a garden hose Franklin T. Clark, Jr., Stephen M. Oas, John C. Ramsey 1999-06-08
5816812 Dental implant fixture Wade W. Prescott, Rick A. Buss 1998-10-06