Inventor · disambiguated record

Donald William Zwiefka

Also filed as: ZWIEFKA DONALD WILLIAM

2 granted patents·3 citations·filing 2012–2014

46Inventor score

Technology areasB29C

Files withWARDLE TREVOR2

Top patents by PatentIndex Score

2 records

0167US9862134B2System and method for manufacturing cylindrical foam articlesWARDLE TREVOR·Filed 2014·Granted Jan 9, 2018·2 cites·13 claims
0259US8714952B2System and method for manufacturing cylindrical foam articlesWARDLE TREVOR·Filed 2012·Granted May 6, 2014·1 cites·13 claims

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