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NAT PATENT DEV CORP

Overview
  • Total Patents
    399
About

NAT PATENT DEV CORP has a total of 399 patent applications. Its first patent ever was published in 1963. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, basic materials chemistry and pharmaceuticals are AQDOT LTD, BIOMATRIX INC and KIM HUI LAE.

Patent filings per year

Chart showing NAT PATENT DEV CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gould Francis E 47
#2 Shepherd Thomas H 45
#3 Vit Jaroslav 30
#4 Shepherd T 15
#5 Gould F 15
#6 Gould Francis Eugene 11
#7 Kuzma Petr 10
#8 Kliment Karel 10
#9 Shepherd Thomas Hugh 10
#10 Ronel Samuel H 10

Latest patents

Publication Filing date Title
US5948558A High energy density boride batteries
US5804329A Electroconversion cell
US5468811A Hydrophilic composite polymer articles formed from a settable paste comprising a mixture of hydrophilic polymer and unsaturated monomer
US5177154A Environmental coating solution
US5045266A Process of making a hearing aid earmold in situ
EP0322223A2 Apparatus for mixing the components of a liquid body treatment composition
EP0331830A1 Delivery system for dental treatment solution
US4736872A Disposable tint pack assembly for contact lens tinting
US4738530A Inspection device
US4957436A Dental pump system for chemical caries removal
US4770632A Delivery system for dental treatment solution
IL76974A Process for the preparation of chemical solution useful in the treatment of teeth containing aminobutyric acid and/or salts thereof and a kit for the treatment of teeth
EP0224599A1 Chemical solution useful in the treatment of teeth
FI854367A0 Vid vaord av taender anvaendbar loesning.
DK510785D0 Solution for treatment of tigns
US4606342A Cautery device having a variable temperature cautery tip
WO8502201A1 System and methods for cell selection
US4617557A Medication compliance aid for unit dose packaging
ES8404230A3 Arrangement of mould constructed of thermoplastic material for producing a truncated contact lens.
CA1218545A Molds and procedure for producing truncated contact lenses