Assignee
NAT INSTR CO
29 granted patents·1,068 citations·filing 1975–1994
Top patents by PatentIndex Score
29 records- 0198US4077441AConvertible filling machineNAT INSTR CO·Filed 1976·Granted Mar 7, 1978·184 cites·19 claims
- 0295US4569378AFilling machine with tandem-operated diaphragm filling unitsNAT INSTR CO·Filed 1983·Granted Feb 11, 1986·83 cites·9 claims
- 0395US4405061AFilling machineNAT INSTR CO·Filed 1981·Granted Sep 20, 1983·85 cites·21 claims
- 0493US5540568ADisposable rolling diaphragm filling unitNAT INSTR CO·Filed 1994·Granted Jul 30, 1996·103 cites·44 claims
- 0591US5301488AProgrammable filling and capping machineNAT INSTR CO·Filed 1992·Granted Apr 12, 1994·89 cites·20 claims
- 0686US5348058AClean-in-place filling machineNAT INSTR CO·Filed 1992·Granted Sep 20, 1994·64 cites·23 claims
- 0783US5154589AMetering pumpNAT INSTR CO·Filed 1990·Granted Oct 13, 1992·56 cites·46 claims
- 0881US4442954ASelf-pressurizing pinch valveNAT INSTR CO·Filed 1982·Granted Apr 17, 1984·36 cites·9 claims
- 0980US4593720AFilling nozzle valve structureNAT INSTR CO·Filed 1983·Granted Jun 10, 1986·36 cites·17 claims
- 1079US4055281AFilling unit with air-operated spool valve systemNAT INSTR CO·Filed 1976·Granted Oct 25, 1977·29 cites·31 claims
- 1177US4313476ADual lane filling machineNAT INSTR CO·Filed 1979·Granted Feb 2, 1982·28 cites·42 claims
- 1276US4230160AAdjustable suck-back device for sanitary pumpsNAT INSTR CO·Filed 1978·Granted Oct 28, 1980·29 cites·19 claims
- 1373US4401141AFilling machineNAT INSTR CO·Filed 1981·Granted Aug 30, 1983·26 cites·14 claims
- 1471US5105859ATime flow volumetric liquid filling machineNAT INSTR CO·Filed 1990·Granted Apr 21, 1992·31 cites·24 claims
- 1571US4266653AStoppering machineNAT INSTR CO·Filed 1978·Granted May 12, 1981·28 cites·9 claims
- 1669US4142561AFilling machine with environmental controlNAT INSTR CO·Filed 1977·Granted Mar 6, 1979·21 cites·32 claims
- 1768US4756137ACapping machineNAT INSTR CO·Filed 1987·Granted Jul 12, 1988·30 cites·20 claims
- 1864US4787822AVolume control for multi-nozzle rotary pump filling systemsNAT INSTR CO·Filed 1986·Granted Nov 29, 1988·18 cites·18 claims
- 1959US4212416AFine tune adjusting mechanism for tandem-operated filling units of a filling machineNAT INSTR CO·Filed 1978·Granted Jul 15, 1980·14 cites·5 claims
- 2054US4073322AHigh-speed filling machineNAT INSTR CO·Filed 1976·Granted Feb 14, 1978·12 cites·23 claims
- 2151US4014472ADischarge nozzle structureNAT INSTR CO·Filed 1975·Granted Mar 29, 1977·10 cites·18 claims
- 2246US4227627ATrimmer arrangement for filling unit of automatic filling machineNAT INSTR CO·Filed 1978·Granted Oct 14, 1980·8 cites·14 claims
- 2341US4294294AControl system for filling machineNAT INSTR CO·Filed 1980·Granted Oct 13, 1981·7 cites·9 claims
- 2440US4201251AAnti-spilling safety device for high-speed filling machinesNAT INSTR CO·Filed 1978·Granted May 6, 1980·8 cites·8 claims
- 2536US5452993ASterilize-in-place diaphragm pumpsNAT INSTR CO·Filed 1994·Granted Sep 26, 1995·13 cites·16 claims
- 2636US4269298ATray indexing apparatusNAT INSTR CO·Filed 1978·Granted May 26, 1981·7 cites·6 claims
- 2735US4182387AAutomatic filling machineNAT INSTR CO·Filed 1978·Granted Jan 8, 1980·4 cites·27 claims
- 2830US5033518AFine adjustment for filling machine having piston differential pressureNAT INSTR CO·Filed 1990·Granted Jul 23, 1991·3 cites·18 claims
- 2926US4087952ACrimping mechanism for an electric capping machineNAT INSTR CO·Filed 1976·Granted May 9, 1978·6 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →