U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.

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W » Welch - WengerDropdown » Welzel, Stephan - Wemple, Jr., Donald N. Dropdown
Welzel, StephanWelzel, ThomasWelzen, James Lewis vanWelzen, Jim VanWelzen, JosephWelzen, Joseph A. (3)Welzen, Jozef T. A. M.Welzen, Leonardus Jacobus Jahannes WilhelmusWelzen, Leonardus Jacobus Johannes WilhelmusWelzen, TheoWelzen, Theodorus L. (2)Welzen, Theo L.Welzenbach, KarlWelzenbach, ManfredWelzer, PeterWelzer, Reiner (3)Welzhofer, KlausWelzhofer, MartinWelzig, Gerhard (3)Welzig, Stefan (4)WELZIG, StefanWelz, Jr., Albert W.Welzk, AndreWelzyn, Kenneth J.Wem, JamesWem, James W. (2)Weman, Klas B.Weman, OlafWeman, Per O. (3)Weman, Per OlafWeman, Per-Olaf (2)Weman, Per Olof (6)Weman, Per-OlofWembacher, Karlheinz (2)
Wember, DirkWember, Kurt (2)Wemeck, Renato F.Wemekamp, Henry (2)Wemelsfelder, Armand V.Wemesfelder, William R.Wemhaner, Bradley MichaelWemheuer, HelmutWemhoener, HartmutWemhoener, HeinrichWemhoff, Gregory A.Wemhoff, Mark F.Wemhoner, HeinrichWemikowski, Thomas J.Wemken, Jan HaukeWemlinger, FredricWemlinger, MartinWemmel, HermannWemmenhove, AlettaWemmenhove, Geert (2)Wemmer, DavidWemmer, David E.Wemmer, GertWemmer, Jeffrey M.WEMMER, JEFFREY M.Wemmer, OttoWemmers, AntonWemmert, FredrikWemmert, Mans (3)Wemmert, MånsWEMMIE, JOHN A.Wemmje, Karl J.Wemmje, Karl-JohannWempe, Cornelis M. P.
Wempe, FrankWempe, LarryWempe, Lawrence K. (3)Wempe, Lawrence KyranWempe, Michael F.Wempe, Michael FitzpatrickWempe, Patrick L. (5)Wempe, Patrick LorinWempe, Paul M.Wempe, Richard J.Wempen, PaulWEMPEN, PaulWemper, RalphWemple, BryceWemple, Bryce CarlWemple, Charles A.Wemple, Donald J.Wemple, Donald JamesWemple, Ivan (2)Wemple, Ivan L. (3)WEMPLE, Ivan L.Wemple, James N. (2)Wemple, James Norton (2)Wemple, JonWemple, JonathanWemple, Jonathan L.Wemple, Jonathon L.Wemple, Michael WWemple, Michael W.Wemple, Robert P.Wemple, Stuart H. (3)Wemple, Jr., Donald N. (2)
 
 
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