RD

Robert S. Dirksing

The Procter & Gamble: 48 patents #139 of 10,133Top 2%
SS S. C. Johnson & Son: 3 patents #519 of 1,588Top 35%
📍 Cincinnati, OH: #98 of 8,043 inventorsTop 2%
🗺 Ohio: #717 of 73,341 inventorsTop 1%
Overall (All Time): #53,069 of 4,157,543Top 2%
51
Patents All Time

Issued Patents All Time

Showing 26–50 of 51 patents

Patent #TitleCo-InventorsDate
5355544 Force-indicating toothbrush using magnetic latching 1994-10-18
5349972 Dual wiper mascara package having residual chamber with bypass channel David Miller 1994-09-27
5316054 Self-contained package for housing, dispensing and diluting concentrated liquid William G. Hall 1994-05-31
5230433 Adult friendly child-resistant attachment for containers used to store potentially dangerous materials Peter W. Hamilton, Reuben E. Oder 1993-07-27
5224763 Method of fastening bristle tufts to bristle carrier 1993-07-06
5215221 Disposable unit dose dispenser for powdered medicants 1993-06-01
5209376 Co-dispensing pump for fluent materials 1993-05-11
5165761 Method of making improved toothbrush having multi-level tufts with substantially uniformly rounded bristle ends in each tuft 1992-11-24
5146645 Toothbrush employing resiliently buckling arch to indicate excessive brushing pressure 1992-09-15
5147072 Toggle closure which permits uninterrupted glug-free pouring from a resiliently deformable container 1992-09-15
5105499 Toothbrush having handle joined to brush head by non-pinching flexible twin beam structure 1992-04-21
5102017 Mechanical actuator for dispensing tap 1992-04-07
5006004 Topical applicator for liquid Theodore F. Merz 1991-04-09
4966780 Packaging of fresh roasted coffee exhibiting improved aroma retention Peter Hargraves, Theodore P. Merz 1990-10-30
4939795 Method of isolating a product in a passive dosing dispenser by trapping internally-generated gas bubble Stephen H. Iding 1990-07-10
4937893 Passive-dosing dispenser employing captive internally-generated gas bubble to provide product isolation Stephen H. Iding 1990-07-03
4892247 Paperboard carton with latching plastic lid Theodore P. Merz 1990-01-09
4873100 Bistable expandable bottle Richard Michael Girardot, Theodore P. Merz 1989-10-10
4730381 Method of making plural-chambered dispensing device exhibiting constant proportional co-dispensing 1988-03-15
4729880 Article for maintaining more even concentrations of bleach in a passive dosing dispenser Bruce Brown, Ray Lotts, Louis Fay Wong 1988-03-08
4678103 Plural-chambered dispensing device exhibiting constant proportional co-dispensing and method for making same 1987-07-07
4664651 Subatmospheric method and apparatus for expanding blood vessels to facilitate puncture with a cannula Eugene Weinshenker 1987-05-12
4462121 Passageway resistant to capillary transport Bruce Albert Yeazell 1984-07-31
4436269 Dispenser suspension means employing planar spring-loaded detent Dale E. Barker 1984-03-13
4247070 Tilt compensating hanger for toilet tank dispensing apparatus 1981-01-27