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Edison's U.S. Patents, 248,416-288,318

This list contains the patents Edison received between July 1881 and December 1883. It is arranged in chronological order by issue date, the time at which the patent, having passed inspection and any legal challenges, was awarded. The execution date is the date on which Edison signed the application and the date in the patenting process that comes closest to the time of actual inventive activity; the application date is the date on which the Patent Office received and recorded the application. The number in the first column indicates the order of the patents' execution.

90,646-242,901	248,416-288,318	293,432-431,018	434,585-610,706	622,843-976,792	991,433-1,908,830
1868-June 1881	July 1881-Dec. 1883	Jan. 1884-June 1890	July 1890-Dec. 1898	1899-1910	1911-1931

No.	Executed	Applied	Issued	PatentNo.	Title
230.	12/30/80	01/11/81	10/18/81	248,416	Manufacture of Carbons for Electric Lamps
183.	06/15/80	06/30/80	10/18/81	248,417	Manufacturing Carbons for Electric Lights
232.	01/19/81	01/31/81	10/18/81	248,418	Electric Lamp
248.	03/30/81	04/15/81	10/18/81	248,419	Electric Lamp
244.	03/07/81	03/26/81	10/18/81	248,420	Fixture and Attachment for Electric Lamps
240.	02/25/81	03/05/81	10/18/81	248,421	Current-Regulator for Dynamo-Electric Machines
236.	01/20/81	01/31/81	10/18/81	248,422	System of Electric Lighting
194.	07/30/80	08/11/80	10/18/81	248,423	Carbonizer
247.	03/08/81	03/26/81	10/18/81	248,424	Fitting and Fixture for Electric Lamps
174.	01/28/80	03/29/80	10/18/81	248,425	Apparatus for Producing High Vacuums
214.	11/05/80	11/24/80	10/18/81	248,426	Apparatus for Treating Carbons for Electric Lamps
228.	12/21/80	01/11/81	10/18/81	248,427	Apparatus for Treating Carbons for Electric Lamps
227.	12/16/80	01/11/81	10/18/81	248,428	Manufacture of Incandescent Electric Lamps
239.	02/24/81	03/03/81	10/18/81	248,429	Electric Motor
185.	07/02/80	07/22/80	10/18/81	248,430	Electro-Magnetic Brake
223.	12/11/80	12/14/80	10/18/81	248,431	Preserving Fruit
187.	07/26/80	08/06/80	10/18/81	248,432	Magnetic Separator
233.	01/19/81	01/31/81	10/18/81	248,433	Vacuum Apparatus
196.	07/31/80	08/09/80	10/18/81	248,434	Governor for Electric Engines
205.	08/12/80	10/01/80	10/18/81	248,435	Utilizing Electricity as a Motive Power
254.	05/17/81	05/27/81	10/18/81	248,436	Depositing Cell for Plating the Connections of Electric Lamps, & c.
229.	12/21/80	01/11/81	10/18/81	248,437	Apparatus for Treating Carbons for Electric Lamps
220.	12/03/80	12/15/80	10/18/81	248,565	Webermeter
216.	11/23/80	11/30/80	12/27/81	12,631	Design for an Incandescent Electric Lamp
310.	12/05/81	12/07/81	12/27/81	251,536	Vacuum-Pump
276.	06/25/81	08/30/81	12/27/81	251,537	Dynamo-Electric Machine
269.	05/27/81	05/28/81	12/27/81	251,538	Electric Light
255.	05/17/81	05/27/81	12/27/81	251,539	Electric Lamp
189.	07/28/80	08/06/80	12/27/81	251,540	Carbon for Electric Lamps
259.	05/20/81	05/31/81	12/27/81	251,541	Electro-Magnetic Motor
249.	04/19/81	04/26/81	12/27/81	251,542	System of Electric Lighting
268.	05/24/81	08/30/81	12/27/81	251,543	Electric Lamp
262.	05/20/81	06/22/81	12/27/81	251,544	Manufacture of Electric Lamps
176.	03/10/80	03/20/80	12/27/81	251,545	Electric Meter
202.	08/10/80	08/17/80	12/27/81	251,546	Electric Lamp
270.	06/02/81	06/24/81	12/27/81	251,547	Electrical Governor
234.	01/19/81	01/31/81	12/27/81	251,548	Incandescent Electric Lamp
260.	05/20/81	05/31/81	12/27/81	251,549	Electric Lamp and the Manufacture Thereof
241.	02/26/81	03/03/81	12/27/81	251,550	Magneto or Dynamo Electric Machine
265.	05/21/81	08/30/81	12/27/81	251,551	System of Electric Lighting
252.	04/22/81	04/26/81	12/27/81	251,552	Underground Conductors
245.	03/07/81	03/26/81	12/27/81	251,553	Electric Chandelier
246.	03/07/81	03/26/81	12/27/81	251,554	Electric Lamp and Socket or Holder
242.	02/26/81	05/27/81	12/27/81	251,555	Regulator for Dynamo-Electric Machines
211.	10/21/80	10/30/80	12/27/81	251,556	Regulator for Magneto or Dynamo Electric Machines
257.	05/19/81	05/27/81	12/27/81	251,557	Webermeter
263.	05/20/81	08/30/81	12/27/81	251,558	Webermeter
298.	10/25/81	11/11/81	12/27/81	251,559	Electrical Drop-Light
168.	08/04/79	08/06/79	01/17/82	252,442	Telephone
287.	09/07/81	10/17/81	05/09/82	257,677	Telephone
273.	06/04/81	06/22/81	08/22/82	263,131	Magnetic Ore-Separator
206.	08/14/80	08/19/80	08/22/82	263,132	Electro-Magnetic Railway
286.	08/24/81	11/11/81	08/22/82	263,133	Dynamo or Magneto Electric Machine
258.	05/19/81	05/28/81	08/22/82	263,134	Regulator for Dynamo or Magneto Electric Machines
201.	08/07/80	08/17/80	08/22/82	263,135	Electric Lamp
256.	05/17/81	05/27/81	08/22/82	263,136	Regulator for Dynamo or Magneto Electric Machines
266.	05/21/81	08/30/81	08/22/82	263,137	Electric Chandelier
304.	11/07/81	11/28/81	08/22/82	263,138	Electric-Arc Light
190.	07/28/80	08/06/80	08/22/82	263,139	Manufacture of Carbons for Electric Lamps
193.	07/30/80	08/09/80	08/22/82	263,140	Dynamo-Electric Machine
264.	05/21/81	06/24/81	08/22/82	263,141	Straightening Carbons of Electric Incandescent Lamps
283.	08/24/81	10/04/81	08/22/82	263,142	Electrical Distribution System
275.	06/24/81	08/30/81	08/22/82	263,143	Magneto or Dynamo Electric Machine
289.	09/19/81	11/11/81	08/22/82	263,144	Mold for Carbonizing Incandescents
250.	04/19/81	04/26/81	08/22/82	263,145	Process of Making Incandescents
307.	11/22/81	11/29/81	08/22/82	263,146	Dynamo Magneto Electric Machine
277.	07/01/81	08/30/81	08/22/82	263,147	Vacuum Apparatus
299.	10/25/81	11/28/81	08/22/82	263,148	Dynamo or Magneto Electric Machine
279.	07/22/81	10/04/81	08/22/82	263,149	Commutator for Dynamo or Magneto Electric Machines
271.	06/03/81	06/22/81	08/22/82	263,150	Magneto or Dynamo Electric Machine
221.	12/03/80	12/15/80	09/05/82	263,878	Electric Lamp
197.	08/04/80	08/09/80	09/19/82	264,642	Electric Distribution and Translation System
164.	04/21/79	05/12/79	09/19/82	264,643	Magneto-Electric Machine
207.	09/01/80	10/07/80	09/19/82	264,645	System of Conductors for the Distribution of Electricity
300.	10/25/81	11/28/81	09/19/82	264,646	Dynamo or Magneto Electric Machine
284.	08/24/81	10/04/81	09/19/82	264,647	Dynamo or Magneto Electric Machine
291.	09/23/81	11/11/81	09/19/82	264,648	Dynamo or Magneto Electric Machine
179.	03/11/80	03/20/80	09/19/82	264,649	Dynamo or Magneto Electric Machine
311.	12/05/81	12/09/81	09/19/82	264,650	Manufacture of Incandescing Electric Lamps
359.	06/09/82	08/07/82	09/19/82	264,651	Incandescent Electric Lamp
319.	12/15/81	08/07/82	09/19/82	264,652	Incandescent Electric Lamp
317.	12/13/81	08/07/82	09/19/82	264,653	Incandescent Electric Lamp
322.	02/10/82	08/07/82	09/19/82	264,654	Incandescent Electric Lamp
360.	06/09/82	08/07/82	09/19/82	264,655	Incandescing Electric Lamp
371.	07/07/82	08/14/82	09/19/82	264,656	Incandescent Electric Lamp
267.	05/21/81	08/30/81	09/19/82	264,657	Incandescent Electric Lamp
330.	02/28/82	08/07/82	09/19/82	264,658	Regulator for Dynamo-Electric Machines
331.	02/28/82	08/07/82	09/19/82	264,659	Regulator for Dynamo-Electric Machines
313.	12/05/81	08/07/82	09/19/82	264,660	Regulator for Dynamo-Electric Machines
323.	02/10/82	08/07/82	09/19/82	264,661	Regulator for Dynamo-Electric Machines
340.	05/01/82	08/07/82	09/19/82	264,662	Regulator for Dynamo-Electric Machines
341.	05/01/82	08/07/82	09/19/82	264,663	Regulator for Dynamo-Electric Machines
324.	02/10/82	08/07/82	09/19/82	264,664	Regulator for Dynamo-Electric Machines
342.	05/01/82	08/07/82	09/19/82	264,665	Regulator for Dynamo-Electric Machines
343.	05/01/82	08/07/82	09/19/82	264,666	Regulator for Dynamo-Electric Machines
348.	05/22/82	08/07/82	09/19/82	264,667	Regulator for Dynamo-Electric Machines
325.	02/10/82	08/07/82	09/19/82	264,668	Regulator for Dynamo-Electric Machines
326.	02/10/82	08/07/82	09/19/82	264,669	Regulator for Dynamo-Electric Machines
361.	06/09/82	08/07/82	09/19/82	264,670	Regulator for Dynamo-Electric Machines
327.	02/10/82	08/07/82	09/19/82	264,671	Regulator for Dynamo-Electric Machines
349.	05/22/82	08/07/82	09/19/82	264,672	Regulator for Dynamo-Electric Machines
303.	11/03/81	11/28/81	09/19/82	264,673	Regulator for Dynamo-Electric Machines
172.	01/28/80	02/05/80	10/03/82	265,311	Electric Lamp and Holder for the Same
290.	09/21/81	11/11/81	10/10/82	265,774	Method of Maintaining Temperature in Webermeters
305.	11/07/81	11/28/81	10/10/82	265,775	Electric-Arc Light
292.	09/27/81	11/11/81	10/10/82	265,776	Electric-Lighting System
225.	12/11/80	12/15/80	10/10/82	265,777	Method of Treating Carbons for Electric Lamps
186.	07/03/80	07/22/80	10/10/82	265,778	Electro-Magnetic Railway-Engine
321.	01/17/82	08/07/82	10/10/82	265,779	Regulator for Dynamo-Electric Machines
332.	02/28/82	08/07/82	10/10/82	265,780	Regulator for Dynamo-Electric Machines
333.	02/28/82	08/07/82	10/10/82	265,781	Regulator for Dynamo-Electric Machines
372.	07/07/82	08/14/82	10/10/82	265,782	Regulator for Dynamo-Electric Machines
373.	07/07/82	08/14/82	10/10/82	265,783	Regulator for Dynamo-Electric Machines
374.	07/07/82	08/14/82	10/10/82	265,784	Regulator for Dynamo-Electric Machines
375.	07/07/82	08/14/82	10/10/82	265,785	Dynamo-Electric Machine
350.	05/22/82	08/07/82	10/10/82	265,786	Apparatus for the Electrical Transmission of Power
288.	09/07/81	10/17/81	10/17/82	266,021	Telephone
167.	08/01/79	08/06/79	10/17/82	266,022	Telephone
251.	04/21/81	04/26/81	10/24/82	266,447	Electric Incandescent Lamp
309.	11/25/81	12/06/81	10/24/82	266,588	Vacuum Apparatus
301.	10/25/81	12/09/81	10/31/82	266,793	Electric Distribution System
339.	05/01/82	05/17/82	11/28/82	268,205	Dynamo or Magneto Electric Machine
395.	10/10/82	10/12/82	11/28/82	268,206	Incandescing Electric Lamp
385.	08/25/82	09/13/82	02/06/83	271,613	Manufacture of Incandescing Electric Lamps
403.	10/19/82	10/20/82	02/06/83	271,614	Shafting
408.	10/19/82	11/09/82	02/06/83	271,615	Governor for Dynamo-Electric Machines
400.	10/16/82	10/20/82	02/06/83	271,616	Regulator for Dynamo-Electric Machines
336.	03/30/82	10/06/82	02/13/83	272,034	Telephone
409.	10/26/82	11/09/82	03/06/83	273,485	Incandescing Electric Lamp
396.	10/12/82	10/20/82	03/06/83	273,486	Incandescing Electric Lamp
389.	09/12/82	09/22/82	03/06/83	273,487	Regulator for Dynamo-Electric Machines
344.	05/01/82	08/07/82	03/06/83	273,488	Regulator for Dynamo-Electric Machines
362.	06/09/82	08/07/82	03/06/83	273,489	Turn-Table for Electric Railways
363.	06/09/82	08/07/82	03/06/83	273,490	Electro-Magnetic Railway System
405.	10/19/82	10/26/82	03/06/83	273,491	Regulator for Driving Engines of Electrical Generators
347.	05/19/82	06/26/82	03/06/83	273,492	Secondary Battery
406.	10/19/82	10/26/82	03/06/83	273,493	Valve-Gear for Electrical Generator-Engines
376.	07/07/82	08/14/82	03/06/83	273,494	Electrical Railroad
381.	08/05/82	08/07/82	03/13/83	273,714	Magneto-Electric Signaling Apparatus
294.	10/04/81	08/07/82	03/13/83	273,715	Art of Malleableizing Iron
351.	05/22/82	08/07/82	03/13/83	273,828	System of Underground Conductors for Electrical Distribution
419.	11/20/82	11/27/82	03/20/83	274,290	System of Electrical Distribution
420.	11/28/82	12/08/82	03/20/83	274,291	Mold for Carbonizing
353.	06/03/82	08/07/82	03/20/83	274,292	Secondary Battery
397.	10/14/82	10/20/82	03/20/83	274,293	Electric Lamp
415.	11/13/82	11/23/82	03/20/83	274,294	Incandescing Electric Lamp
417.	11/14/82	11/23/82	03/20/83	274,295	Incandescent Electric Lamp
370.	07/05/82	08/14/82	03/20/83	274,296	Manufacture of Incandescents
337.	03/30/82	10/06/82	03/27/83	274,576	Transmitting-Telephone
338.	03/30/82	10/06/82	03/27/83	274,577	Telephone
398.	10/14/82	10/20/82	04/10/83	275,612	Manufacture of Incandescing Electric Lamps
328.	02/10/82	08/07/82	04/10/83	275,613	Incandescing Electric Lamp
426.	12/20/82	01/08/83	04/24/83	276,232	Means for Operating and Regulating Electrical Generators
418.	11/14/82	11/23/82	04/24/83	276,233	Electrical Generator and Motor
433.	02/13/83	03/16/83	05/29/83	13,940	Design for Incandescing Electric Lamp
421.	11/28/82	12/08/82	05/29/83	278,413	Regulator for Dynamo-Electric Machines
422.	11/28/82	12/08/82	05/29/83	278,414	Regulator for Dynamo-Electric Machines
427.	01/13/83	01/22/83	05/29/83	278,415	Manufacture of Incandescing Electric Lamps
334.	02/28/82	08/07/82	05/29/83	278,416	Manufacture of Incandescing Electric Lamps
428.	01/13/83	01/22/83	05/29/83	278,417	Manufacture of Incandescing Electric Lamps
377.	07/07/82	08/14/82	05/29/83	278,418	Apparatus for Translating Electric Currents From High to Low Tension
320.	12/15/81	08/07/82	05/29/83	278,419	Dynamo-Electric Machine
434.	02/13/83	03/16/83	07/03/83	280,727	System of Electrical Distribution
429.	01/13/83	01/22/83	07/17/83	281,349	Regulator for Dynamo-Electric Machines
416.	11/13/82	11/23/82	07/17/83	281,350	Regulator for Dynamo-Electric Machines
441.	03/05/83	03/16/83	07/17/83	281,351	Electrical Generator
295.	10/05/81	11/11/81	07/17/83	281,352	Webermeter
357.	06/03/82	09/13/82	07/17/83	281,353	Dynamo or Magneto Electric Machine
382.	08/05/82	08/07/82	07/31/83	282,287	Magneto-Electric Signaling Apparatus
444.	04/05/83	04/17/83	08/28/83	283,983	System of Electrical Distribution
442.	03/05/83	03/16/83	08/28/83	283,984	System of Electrical Distribution
430.	01/13/83	01/22/83	08/28/83	283,985	System of Electrical Distribution
431.	01/13/83	01/22/83	08/28/83	283,986	System of Electrical Distribution
460.	06/25/83	06/29/83	10/30/83	287,511	Electric Regulator
461.	06/25/83	06/29/83	10/30/83	287,512	Dynamo-Electric Machine
462.	06/25/83	06/29/83	10/30/83	287,513	Dynamo-Electric Machine
463.	06/25/83	06/29/83	10/30/83	287,514	Dynamo-Electric Machine
464.	06/25/83	06/29/83	10/30/83	287,515	System of Electrical Distribution
449.	05/08/83	05/14/83	10/30/83	287,516	System of Electrical Distribution
443.	03/14/83	03/16/83	10/30/83	287,517	System of Electrical Distribution
386.	08/25/82	09/13/82	10/30/83	287,518	Method of Manufacturing Incandescing Electric Lamps
423.	11/28/82	12/08/82	10/30/83	287,519	Incandescing Electric Lamp
412.	11/03/82	11/09/82	10/30/83	287,520	Incandescing Conductor for Electric Lamps
436.	02/17/83	03/16/83	10/30/83	287,521	Dynamo or Magneto Electric Machine
437.	02/17/83	03/16/83	10/30/83	287,522	Mold for Carbonizing
358.	06/03/82	09/13/82	10/30/83	287,523	Dynamo or Magneto Electric Machine
424.	11/28/82	12/08/82	10/30/83	287,524	Regulator for Dynamo-Electric Machines
392.	10/04/82	10/20/82	10/30/83	287,525	Regulator for Systems of Electrical Distribution
297.	10/17/81	11/11/81	11/13/83	288,318	Regulator for Dynamo or Magneto Electric Machines

90,646-242,901 1868-June 1881

248,416-288,318 July 1881-Dec. 1883

293,432-431,018 Jan. 1884-June 1890

434,585-610,706 July 1890-Dec. 1898

622,843-976,792 1899-1910

991,433-1,908,830 1911-1931

Last Updated: 02/20/2012 , taep@rci.rutgers.