Inventor

Wolfgang Stephan

Inventor

Heidelberg, DE

Overview

54→

Patents

1978–2020

Patent span

Human necessities

Primary field (CPC A)

Patents· 54 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Fprimary

G06FElectric digital data processing17%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%

A61KPreparations for medical, dental or toiletry purposes12%

C07KPeptides9%

F01LCyclically operating valves for machines or engines9%

A61LMethods or apparatus for sterilising materials or objects in general5%

C12NMicroorganisms or enzymes4%

F16HGearing4%

Y10TTechnical subjects covered by former us classification3%

A23CDairy products, e.g. milk, butter or cheese3%

PatentTitleYear

10,810,170Equi-joins between split tables2020 10,565,200Conversion of model views into relational models2020 10,521,426Query plan generation for split table query operations2019 10,423,619Query plan generation for precompiled and code generating query operations2019 10,346,298Interval garbage collection for multi-version concurrency control in database systems2019 10,042,910Database table re-partitioning using two active partition specifications2018 9,846,709Equi-joins between split tables2017 9,135,282'Equi-joins between split tables'2015 9,122,738'Selection of rows and values from indexes with updates'2015 8,812,564'Parallel uniqueness checks for partitioned tables'2014 8,793,287'Equi-joins between split tables'2014 8,527,518'Inverted indexes with multiple language support'2013 8,423,528'Selection of rows and values from indexes with updates'2013 8,161,024'Selection of rows and values from indexes with updates'2012 8,027,969'Efficient calculation of sets of distinct results in an information retrieval service'2011 7,836,037'Selection of rows and values from indexes with updates'2010 7,634,468'Expanded inverted index'2009 7,546,306'Object metamodel comprising views on a join graph'2009 7,487,141'Skipping pattern for an inverted index'2009 7,484,486'Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters'2009 7,149,748'Expanded inverted index'2006 6,742,484'Device for relative rotational angle adjustment of a cam shaft of an internal combustion engine to a drive wheel'2004 6,679,208'Device for adjusting the angle of rotation of a camshaft of an internal combustion engine relative to a drive wheel'2004 6,666,179'Camshaft for the operation of valves of an internal-combustion engine'2003 6,474,749'Hydraulic system for actuating at least two operating systems of a motor vehicle'2002 6,205,965'Device for adjusting the relative rotational background of camshafts'2001 6,053,137'Device for supplying pressure medium and/or lubricant to a hydraulic consumer in an internal combustion engine'2000 6,053,138'Device for hydraulic rotational angle adjustment of a shaft relative to a drive wheel'2000 5,732,612'Actuator for a position-adjusting device, preferably for a valve lift adjusting device of motor vehicles'1998 5,606,941'Variable timing camshaft drive system'1997 5,597,367'Apparatus for tensioning of a cam shaft drive'1997 5,576,040'Process for the sterile filtration of milk'1996 5,227,050'Floating suction extractor for skimming liquids having a tendency to foam'1993 5,147,548'Colostrum filtered sterile'1992 5,120,278'Arrangement for the tensioning and adjusting of a camshaft chain drive'1992 5,099,003'Method of preparing a sterile plasma-protein solution containing fibrinogen and Factor XIII'1992 5,075,425'Process for the preparation of a pharmaceutical which contains IgG, IgA and IgM and can be administered intravenously'1991 5,011,695'Sterilization of blood and its derivatives with vitamins'1991 4,965,068'Polyvalent hyperimmunoglobulin preparation'1990 4,946,648'Method of sterilizing plasma or plasma fractions'1990 4,877,866'Method of producing a virus safe, storage-stable, and intravenously tolerable immunoglobulin-G preparation'1989 4,734,279'Combination of immunoglobulins with therapeutic agents'1988 4,644,056'Method of preparing a solution of lactic or colostric immunoglobulins or both and use thereof'1987 4,564,906'Device for altering gear-shifting sequence in relation to vehicle load'1986 4,503,039'Coagulant plasma-protein solution'1985 4,370,264'Method for the cold sterilization of preparations containing blood coagulation factor VIII'1983 4,318,902'Concentrated immunoglobulin solution suited for intravenous administration'1982 4,272,523'Fractionating citrate-stabilized plasma'1981 4,170,590'Ion exchanger treatment of citrate-stabilized plasma'1979 4,154,819'Preparation of a gamma-globulin solution suitable for intravenous administration using diketene'1979 4,153,683'Galenic immune-globulin preparation'1979 4,147,765'Preparation of antiserum for quantitative determination of X and Y degradation products of fibrin and fibrinogen'1979 4,082,734'Production of intravenously applicable native human immune globulin having a normal half-life'1978 4,081,431'Blood fractionation'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1985Patents assigned to BIOTEST SERUM INSTITUT GMBH (10)· patent assignee history

1978–1979Based in Dreieichenhain, DE· patent location history

1979–1992Based in Dreieich, DE· patent location history

1987–1996Patents assigned to BIOTEST PHARMA GMBH (10)· patent assignee history

1992–2009Patents assigned to PORSCHE AG (9)· patent assignee history

1992–2001Based in Nuertingen-Zizishausen, DE· patent location history

2000–2009Based in Boll, DE· patent location history

2006–2014Patents assigned to SAP AG (11)· patent assignee history

2006–2020Based in Heidelberg, DE· patent location history

2015–2020Patents assigned to SAP SE (9)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SAP AG	11	2006–2014
BIOTEST PHARMA GMBH	10	1987–1996
BIOTEST SERUM INSTITUT GMBH	10	1978–1985
PORSCHE AG	9	1992–2009
SAP SE	9	2015–2020

Locations

Location	Patents	Span
Heidelberg, DE	18	2006–2020
Dreieich, DE	14	1979–1992
Boll, DE	7	2000–2009
Dreieichenhain, DE	5	1978–1979
Nuertingen-Zizishausen, DE	4	1992–2001