Inventor · disambiguated record
Herwig Wrulich
Also filed as: WRUELICH HERWIG · WRULICH HERWIG
29 granted patents·479 citations·filing 1976–1997
97Inventor score
Top patents by PatentIndex Score
29 records- 0198US4247150ABit arrangement for a cutting toolVOEST ALPINE AG·Filed 1979·Granted Jan 27, 1981·124 cites·8 claims
- 0284US4542942ABit holder equipped with a spraying deviceVOEST ALPINE AG·Filed 1983·Granted Sep 24, 1985·48 cites·8 claims
- 0379US4784439AMovable cutting machineVOEST ALPINE AG·Filed 1982·Granted Nov 15, 1988·21 cites·8 claims
- 0477US4159746ABit of circular cross-sectionVOEST AG·Filed 1977·Granted Jul 3, 1979·21 cites·7 claims
- 0570US4091692ABit holderVOEST AG·Filed 1976·Granted May 30, 1978·13 cites·4 claims
- 0668US4591209AProtecting device for partial-cut cutting machinesVOEST ALPINE AG·Filed 1983·Granted May 27, 1986·26 cites·9 claims
- 0766US4111488AMethod for cutting minerals and cutting machineVOEST AG·Filed 1976·Granted Sep 5, 1978·11 cites·11 claims
- 0862US6149733AApparatus and method for descaling a workpiece with a liquid jetVOEST ALPINE INDUSTRIANLAGENBA·Filed 1997·Granted Nov 21, 2000·11 cites·10 claims
- 0960US4555143AApparatus for cutting rockVOEST ALPINE AG·Filed 1984·Granted Nov 26, 1985·19 cites·13 claims
- 1060US4157773AGrease gunVOEST AG·Filed 1977·Granted Jun 12, 1979·15 cites·10 claims
- 1155US4456306ACooling system for cooling the bits of a cutting machineVOEST ALPINE AG·Filed 1982·Granted Jun 26, 1984·18 cites·11 claims
- 1252US4721340AProcess for controlling the movement of an universally swivellable cutting arm as well as control device for performing this processVOEST ALPINE AG·Filed 1986·Granted Jan 26, 1988·17 cites·8 claims
- 1352US4285549AAssembly for cooling the teeth of the cutting head and the rock faceVOEST ALPINE AG·Filed 1979·Granted Aug 25, 1981·6 cites·15 claims
- 1451US4289357AHollow cutting headVOEST ALPINE AG·Filed 1980·Granted Sep 15, 1981·17 cites·9 claims
- 1546US4735458ADevice for intermittently subjecting axially shiftable bits of a cutting head to the action of pressurized fluidsVOEST ALPINE AG·Filed 1986·Granted Apr 5, 1988·14 cites·8 claims
- 1642US4770469AProcess for controlling the movement of a universally swivellable cutting arm of a partial cut cutting machine as well as apparatus for performing this processVOEST ALPINE AG·Filed 1986·Granted Sep 13, 1988·14 cites·13 claims
- 1742US4577892AArrangement for supplying a pressurized liquid to a rotating machine partVOEST ALPINE AG·Filed 1983·Granted Mar 25, 1986·12 cites·8 claims
- 1841US4805963AShield advancing machineVOEST ALPINE AG·Filed 1986·Granted Feb 21, 1989·15 cites·7 claims
- 1940US4884848ADevice and method for exploiting materialVOEST ALPINE AG·Filed 1987·Granted Dec 5, 1989·15 cites·9 claims
- 2040US4568127ACutting head for drift advancing machinesVOEST ALPINE AG·Filed 1983·Granted Feb 4, 1986·10 cites·5 claims
- 2136US4572583ACutting head for drift advancing machines and process for producing sameVOEST ALPINE AG·Filed 1983·Granted Feb 25, 1986·8 cites·8 claims
- 2235US4585275AProcess for spraying the bits and/or the facing with pressurized liquid as well as apparatus for performing this processVOEST ALPINE AG·Filed 1984·Granted Apr 29, 1986·5 cites·6 claims
- 2335US4379594AProcess for sinking of shaftsVOEST ALPINE AG·Filed 1980·Granted Apr 12, 1983·2 cites·12 claims
- 2435US4368918AProcess and apparatus for controlling the water supply to the cutting head of a cutting machineVOEST ALPINE AG·Filed 1980·Granted Jan 18, 1983·6 cites·4 claims
- 2534US4537447ADevice for cooling the bits of cutting machineVOEST ALPINE AG·Filed 1982·Granted Aug 27, 1985·4 cites·4 claims
- 2630US4506932ADevice for cooling the bits of a cutting machineVOEST ALPINE AG·Filed 1982·Granted Mar 26, 1985·1 cites·2 claims
- 2730US4076317ADevice for guying a movable cutting machineVOEST AG·Filed 1976·Granted Feb 28, 1978·0 cites·8 claims
- 2828US4351564ADevice for preventing collision between part of the cutting arm and part of the loading ramp for a cutting machineVOEST ALPINE AG·Filed 1980·Granted Sep 28, 1982·5 cites·6 claims
- 2922US4778221AMovable device for openpit miningVOEST ALPINE AG·Filed 1987·Granted Oct 18, 1988·1 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Herwig Wrulich 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 →