Inventor · disambiguated record
L. Dennis Butler
Also filed as: BULTER L DENNIS · BUTLER L DENNIS
17 granted patents·142 citations·filing 1974–1982
93Inventor score
Top patents by PatentIndex Score
17 records- 0167US4068804AMethod and machine for tearing apart stacked crop material balesSPERRY RAND CORP·Filed 1975·Granted Jan 17, 1978·23 cites·10 claims
- 0257US4150756ABale wagonSPERRY RAND CORP·Filed 1978·Granted Apr 24, 1979·14 cites·8 claims
- 0351US4227845ARolling rack control for automatic bale wagonSPERRY RAND CORP·Filed 1978·Granted Oct 14, 1980·14 cites·6 claims
- 0449US4426183AAutomatic control linkage for round bale wagonSPERRY CORP·Filed 1981·Granted Jan 17, 1984·12 cites·13 claims
- 0547US4360302AHydraulic hose slack adjustor apparatusSPERRY CORP·Filed 1980·Granted Nov 23, 1982·12 cites·6 claims
- 0645US4190392AStack side evenerSPERRY CORP·Filed 1978·Granted Feb 26, 1980·8 cites·7 claims
- 0742US4431357ATailgate control system for round bale wagonSPERRY CORP·Filed 1981·Granted Feb 14, 1984·9 cites·13 claims
- 0841US4408942AControl linkage for two function bale pickupSPERRY CORP·Filed 1981·Granted Oct 11, 1983·10 cites·8 claims
- 0937US4305690ADelivery tray return mechanism for a bale wagonSPERRY CORP·Filed 1979·Granted Dec 15, 1981·6 cites·7 claims
- 1037US4212578AApparatus for retaining bales in position on a bale wagonSPERRY CORP·Filed 1978·Granted Jul 15, 1980·5 cites·7 claims
- 1136US4428706AInterlock selector control valve for round bale wagonSPERRY CORP·Filed 1981·Granted Jan 31, 1984·7 cites·6 claims
- 1232US4358235AAdjustable cross conveyor for bale handling apparatusSPERRY CORP·Filed 1980·Granted Nov 9, 1982·7 cites·4 claims
- 1331US4505633AOverruning sprocket for bale wagon pickupSPERRY CORP·Filed 1982·Granted Mar 19, 1985·2 cites·2 claims
- 1431US4394103AHydraulic system for a round bale wagonSPERRY CORP·Filed 1981·Granted Jul 19, 1983·5 cites·1 claims
- 1531US4149639ATwo-position trip armSPERRY RAND CORP·Filed 1978·Granted Apr 17, 1979·4 cites·14 claims
- 1628US3942652AMethod and apparatus for forming a pair of two and one-half bale wide tier patternsSPERRY RAND CORP·Filed 1974·Granted Mar 9, 1976·4 cites·16 claims
- 1722US4204791ABale alignment deviceSPERRY CORP·Filed 1978·Granted May 27, 1980·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when L. Dennis Butler files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →