Drummond Scientific Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B01L CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE 454
 
 
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2204
 
 
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
 
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
 
 
G01K MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR 145

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7475653 Sealed-system critical temperature indicatorSep 24, 04Jan 13, 09[G01K]
7329104 Split-housing pipette pumpMar 02, 04Feb 12, 08[F04B]
6531098 Disposable preselected-volume, capillary pipette device having an integrally-formed bulbous end and method of taking blood samples using the deviceOct 30, 98Mar 11, 03[B01L]
5916814 Presealed integral hematocrit test assembly and methodOct 09, 96Jun 29, 99[G01N]
5616871 Pipet gun assemblySep 28, 95Apr 01, 97[G01N, B01L]
5294405 Adjustable valve for pipette gunApr 09, 92Mar 15, 94[B01L, B65B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0316,214 Method and Apparatus for Performing In Vitro FertilizationAbandonedDec 18, 13Oct 23, 14[A61B, A61M]
2014/0272,992 Method and Apparatus for Rapidly and Cyclically Heating and Cooling a Fluid Sample During PCR TestingAbandonedMar 15, 14Sep 18, 14[C12Q]
2011/0011,330 Dual-Temperature, Sealed-System Critical Temperature IndicatorAbandonedJul 20, 09Jan 20, 11[G01K]
7396512 Automatic precision non-contact open-loop fluid dispensingExpiredNov 04, 03Jul 08, 08[B01L]
2007/0253,832 Method and apparatus for controlling fluid flowAbandonedApr 27, 06Nov 01, 07[F04B]
2007/0086,924 Pipette with contamination indicatorAbandonedOct 18, 05Apr 19, 07[B01L]
2006/0239,866 Glass safety tubeAbandonedApr 26, 05Oct 26, 06[B01L]
2006/0134,598 Cell culture media dispenserAbandonedDec 20, 04Jun 22, 06[C12Q, C12M]
6997068 Foot-operated pipette dispenserExpiredJul 31, 03Feb 14, 06[B01L]
6734026 Pipette gun and holster assemblyExpiredMay 28, 99May 11, 04[B01N, G01N]
6309603 Microcentrifuge tube cap opening and closing apparatus and methodExpiredFeb 01, 99Oct 30, 01[B67B]
6240791 User-replaceable pipette gun gripExpiredAug 07, 98Jun 05, 01[B01L]
5900091 Process for making a safety pipet tubeExpiredAug 27, 92May 04, 99[B32B]
5214968 Pipet filling and discharge deviceExpiredJan 06, 92Jun 01, 93[G01N]
5173266 Safety pipetExpiredJul 19, 89Dec 22, 92[G01N]
5104625 Pipetter deviceExpiredOct 04, 89Apr 14, 92[B01L]
5090255 Programmable pipet apparatusExpiredMar 27, 90Feb 25, 92[B01L]
5059398 Disposable preselected-volume capillary pipet deviceExpiredJul 22, 85Oct 22, 91[B01L]
5043106 Method of casting optical mirrorsExpiredFeb 15, 89Aug 27, 91[B29D]
4662545 Disposable capillary tube deviceExpiredJan 05, 84May 05, 87[B67D]

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