Assignee
DOBSON PARK IND
GB·30 granted patents·270 citations·filing 1975–1985
Top patents by PatentIndex Score
30 records- 0185US4586867AConnection devicesDOBSON PARK IND·Filed 1983·Granted May 6, 1986·41 cites·11 claims
- 0285US4146271AControl of self-advancing mine roof supportsDOBSON PARK IND·Filed 1977·Granted Mar 27, 1979·31 cites·37 claims
- 0377US4637816AApparatus for the oral administration of capsules to animalsDOBSON PARK IND·Filed 1984·Granted Jan 20, 1987·58 cites·19 claims
- 0463US4353426APercussive toolsDOBSON PARK IND·Filed 1980·Granted Oct 12, 1982·18 cites·15 claims
- 0561USD266682SToy activity caseDOBSON PARK IND·Filed 1980·Granted Oct 26, 1982·13 cites·1 claims
- 0660US4692067AControl systemsDOBSON PARK IND·Filed 1984·Granted Sep 8, 1987·11 cites·17 claims
- 0760US4505517ASelf-advancing mine roof supportsDOBSON PARK IND·Filed 1982·Granted Mar 19, 1985·11 cites·20 claims
- 0857US4113123AVehicle or carriage mounted materials transporting machineDOBSON PARK IND·Filed 1975·Granted Sep 12, 1978·11 cites·9 claims
- 0955US3940151AGlandsDOBSON PARK IND·Filed 1975·Granted Feb 24, 1976·13 cites·10 claims
- 1050US4490076AUnderground support devicesDOBSON PARK IND·Filed 1982·Granted Dec 25, 1984·7 cites·17 claims
- 1145US4256145AImpact type toolsDOBSON PARK IND·Filed 1978·Granted Mar 17, 1981·8 cites·15 claims
- 1244USD271596SCombined toy typewriter and loudspeaker thereforDOBSON PARK IND·Filed 1981·Granted Nov 29, 1983·3 cites·1 claims
- 1343US4094422ABucket loader boomDOBSON PARK IND·Filed 1976·Granted Jun 13, 1978·8 cites·7 claims
- 1441US4560306ACoal face supportDOBSON PARK IND·Filed 1983·Granted Dec 24, 1985·8 cites·17 claims
- 1538US4249768AVehicles including a materials supporting surface adapted for use in underground mining operationsDOBSON PARK IND·Filed 1978·Granted Feb 10, 1981·6 cites·10 claims
- 1636US4204780ATypewriter with improved case shift meansDOBSON PARK IND·Filed 1977·Granted May 27, 1980·3 cites·6 claims
- 1733US4580594AValve devicesDOBSON PARK IND·Filed 1984·Granted Apr 8, 1986·5 cites·6 claims
- 1832US4583709AValvesDOBSON PARK IND·Filed 1984·Granted Apr 22, 1986·3 cites·12 claims
- 1932US4036108APressure fluid operated percussion toolsDOBSON PARK IND·Filed 1975·Granted Jul 19, 1977·3 cites·5 claims
- 2031US4605341AMine roof support and attachment means thereforDOBSON PARK IND·Filed 1984·Granted Aug 12, 1986·2 cites·16 claims
- 2129US4563111AMine roof supportsDOBSON PARK IND·Filed 1984·Granted Jan 7, 1986·0 cites·18 claims
- 2229US4040584AMounting arrangements for mineral displacing toolsDOBSON PARK IND·Filed 1976·Granted Aug 9, 1977·1 cites·13 claims
- 2328US4643392AValvesDOBSON PARK IND·Filed 1985·Granted Feb 17, 1987·0 cites·21 claims
- 2428US4617954AValve assembliesDOBSON PARK IND·Filed 1984·Granted Oct 21, 1986·1 cites·14 claims
- 2528US4573518ACasting method and apparatusDOBSON PARK IND·Filed 1984·Granted Mar 4, 1986·0 cites·14 claims
- 2628US4195939AType bar actuating mechanism for a typewriterDOBSON PARK IND·Filed 1977·Granted Apr 1, 1980·2 cites·8 claims
- 2727USD282185SCombined printing toy and case thereforeDOBSON PARK IND·Filed 1982·Granted Jan 14, 1986·0 cites·1 claims
- 2827USD268122SToy typewriter with integral platformDOBSON PARK IND·Filed 1980·Granted Mar 1, 1983·1 cites·1 claims
- 2927US4113316AFunneling machine with inclined advancing ramsDOBSON PARK IND·Filed 1976·Granted Sep 12, 1978·2 cites·6 claims
- 3016US4712934ATypewriter carriage escapement mechanism having two sets of teethDOBSON PARK IND·Filed 1985·Granted Dec 15, 1987·0 cites·5 claims
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