Inventor · disambiguated record
Robert D. Walker
Also filed as: WALKER JR ROBERT D · WALKER ROBERT A · WALKER ROBERT D
10 granted patents·1 pending application·411 citations·filing 1973–2011
91Inventor score
Files withENDOTRONICS INC2WALKER ROBERT D2BOHNER STEPHAN E1HIGH PRESSURE EQUIPMENT CO INC1R A HANSON COMPANY INC1
Top patents by PatentIndex Score
11 records- 0197US4618586AApparatus for administering a controlled dosage of a chemical substance having an improved culture chamberENDOTRONICS INC·Filed 1983·Granted Oct 21, 1986·100 cites·7 claims
- 0293US4804628AHollow fiber cell culture device and method of operationENDOTRONICS INC·Filed 1987·Granted Feb 14, 1989·143 cites·21 claims
- 0385US8075031B2HVAC filter changing systemWALKER JR ROBERT D·Filed 2009·Granted Dec 13, 2011·28 cites·18 claims
- 0482US6355435B1Methods for detecting and enumerating Campylobacter jejuni in environmental samples and for identifying antibiotic-resistant strainsUNIV MICHIGAN STATE·Filed 2000·Granted Mar 12, 2002·23 cites·29 claims
- 0581US3976279AHigh pressure valveHIGH PRESSURE EQUIPMENT CO INC·Filed 1973·Granted Aug 24, 1976·37 cites·1 claims
- 0679US8714598B2Hydraulic fluid coupling comprising an inline swivel jointBOHNER STEPHAN E·Filed 2011·Granted May 6, 2014·10 cites·19 claims
- 0767US4057678AMolten salt battery having inorganic paper separatorUS ENERGY·Filed 1977·Granted Nov 8, 1977·18 cites·10 claims
- 0866US5590482AExcavator and earthen material excavator bucket apparatusR A HANSON COMPANY INC·Filed 1995·Granted Jan 7, 1997·44 cites·17 claims
- 0954US2005247654A1Display systemWALKER ROBERT A·Filed 2005·Application pending·0 cites
- 1042USD333760SCombined top pie crust sealer and trimmerWALKER ROBERT D·Filed 1991·Granted Mar 9, 1993·5 cites·1 claims
- 1135USD372886SRoadrunner golf trophyWALKER ROBERT D·Filed 1995·Granted Aug 20, 1996·3 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →